1# Ability Error Codes 2 3<!--Kit: Ability Kit--> 4<!--Subsystem: Ability--> 5<!--Owner: @duan-sizhao; @Luobniz21--> 6<!--Designer: @ccllee1--> 7<!--Tester: @lixueqing513--> 8<!--Adviser: @huipeizi--> 9 10> **NOTE** 11> 12> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 13 14## 16000001 Ability Name Does Not Exist 15 16**Error Message** 17 18The specified ability does not exist. 19 20**Description** 21 22This error code is reported when the specified ability name does not exist. 23 24**Possible Causes** 25 26The ability to query does not exist. 27 28**Solution** 29 301. Pass in correct values of **bundleName**, **moduleName**, and **abilityName** in **want**. 312. Check whether the application corresponding to **bundleName** in **want** is installed. You can run the following command to query the list of installed applications. If **bundleName** is not in the query result, the application is not installed. 32 ``` 33 hdc shell bm dump -a 34 ``` 353. For a multi-HAP application, check whether the HAP to which the ability belongs is installed. You can run the following command to query the bundle information. If the installed application does not contain the corresponding HAP and ability, the HAP to which the ability belongs is not installed. 36 ``` 37 hdc shell bm dump -n bundleName 38 ``` 39 40## 16000002 Incorrect Ability Type 41 42**Error Message** 43 44Incorrect ability type. 45 46**Description** 47 48This error code is reported when the ability type invoked by the API is incorrect. 49 50**Possible Causes** 51 52The ability with the specified type does not support the API call. 53 54**Solution** 55 561. Pass in correct values of **bundleName**, **moduleName**, and **abilityName** in **want**. 572. Call APIs based on the ability type. For example, call <!--Del-->[startServiceExtensionAbility](js-apis-inner-application-uiAbilityContext-sys.md#startserviceextensionability) to start the ServiceExtensionAbility, or call <!--DelEnd-->[connectServiceExtensionAbility()](js-apis-inner-application-uiAbilityContext.md#connectserviceextensionability) to connect to the ServiceExtensionAbility. 58 59## 16000003 ID Not Exist 60 61**Error Message** 62 63The specified ID does not exist. 64 65**Description** 66 67This error code is reported when the specified ID does not exist. 68 69**Possible Causes** 70 71The target with the specified ID does not exist. 72 73**Solution** 74 75Use the correct ID. 76 77## 16000004 Visibility Verification Failure 78 79**Error Message** 80 81Cannot start an invisible component. 82 83**Description** 84 85This error code is reported when the application fails visibility verification. 86 87**Possible Causes** 88 89Visibility verification fails. 90 91**Solution** 92 931. Check whether [exported](../../quick-start/module-configuration-file.md#abilities) under the **Ability** field in the **module.json5** file of the ability is set to **true**. If this parameter is set to **true**, the ability can be started by other applications. If this parameter is set to **false**, the ability cannot be started by other applications. 942. To start the ability for which **exported** is set to **false**, the caller must request the ohos.permission.START_INVISIBLE_ABILITY permission, which is available only for system applications. 95 96## 16000005 Process Permission Verification Failure 97 98**Error Message** 99 100The specified process does not have the permission. 101 102**Description** 103 104This error code is reported when the specified process fails permission verification. 105 106**Possible Causes** 107 108Permission verification for the specified process fails. 109 110**Solution** 111 112Check whether the permission of the specified process is correct. 113 114## 16000006 Cross-User Operation Is Not Allowed 115 116**Error Message** 117 118Cross-user operations are not allowed. 119 120**Description** 121 122This error code is reported when an application tries to perform a cross-user operation. 123 124**Possible Causes** 125 126The application initiates a cross-user operation. 127 128**Solution** 129 130Do not perform a cross-user operation. 131 132## 16000007 Service Busy 133 134**Error Message** 135 136Service busy. There are concurrent tasks. Try again later. 137 138**Description** 139 140This error code is reported when the service requested is busy. 141 142**Possible Causes** 143 144The service is busy. 145 146**Solution** 147 148Try again later. 149 150## 16000008 Crowdtesting Application Expires 151 152**Error Message** 153 154The crowdtesting application expires. 155 156**Description** 157 158This error code is reported when users try to open a crowdtesting application that has expired. 159 160**Possible Causes** 161 162The crowdtesting application has expired. 163 164**Solution** 165 166Expired crowdtesting applications cannot be started. 167 168## 16000009 Ability Start or Stop Failure in Wukong Mode 169 170**Error Message** 171 172An ability cannot be started or stopped in Wukong mode. 173 174**Description** 175 176This error code is returned when the application tries to start or stop an ability in Wukong mode. 177 178**Possible Causes** 179 180An ability cannot be started or stopped in Wukong mode. 181 182**Solution** 183 184Exit Wukong mode, and then start or stop the ability. 185 186## 16000010 Continuation Flag Forbidden 187 188**Error Message** 189 190The call with the continuation and prepare continuation flag is forbidden. 191 192**Description** 193 194This error code is reported when the API call carries the continuation flag. 195 196**Possible Causes** 197 198The continuation flag is not allowed for the API call. 199 200**Solution** 201 202Remove the continuation flag. 203 204## 16000011 Context Does Not Exist 205 206**Error Message** 207 208The context does not exist. 209 210**Description** 211 212This error code is reported when the specified context does not exist. 213 214**Possible Causes** 215 216The context passed in the API does not exist. 217 218**Solution** 219 220Use the correct context. 221 222## 16000012 Application Under Control 223 224**Error Message** 225 226The application is controlled. 227 228**Description** 229 230This error code is reported when the application is under control. 231 232**Possible Causes** 233 234The application is controlled by the system control module and is not allowed to start. 235 236**Solution** 237 238It is recommended that end users uninstall the application. 239 240## 16000013 Application Controlled by EDM 241 242**Error Message** 243 244The application is controlled by EDM. 245 246**Description** 247 248This error code is reported when an application is controlled by [Enterprise Device Manager (EDM)](../../mdm/mdm-kit-admin.md). 249 250**Possible Causes** 251 252The application is controlled by EDM. 253 254**Solution** 255 256Contact the enterprise device management personnel. 257 258## 16000015 Service Timeout 259 260**Error Message** 261 262Service timeout. 263 264**Description** 265 266This error code is reported when the service requested times out. 267 268**Possible Causes** 269 270The service times out. 271 272**Solution** 273 274Try again later. 275 276## 16000018 Restricting Redirection to Third-Party Applications of API Version 11 or Later 277 278**Error Message** 279 280Redirection to a third-party application is not allowed in API version greater than 11. 281 282**Description** 283 284When the API version of an application is later than 11, the application cannot be explicitly redirected to a third-party application. 285 286**Possible Causes** 287 288The application is using an API version later than 11 and is trying to explicitly redirect to a third-party application. 289 290**Solution** 291 292Use implicit startup or [openLink](js-apis-inner-application-uiAbilityContext.md#openlink12) for redirection. 293 294## 16000019 No Matching Application Is Found During Implicit Startup 295 296**Error Message** 297 298No matching ability is found. 299 300**Description** 301 302A matching ability is not found during implicit startup. 303 304**Possible Causes** 305 3061. The parameter settings for implicit startup are incorrect. 3072. The specified HAP is not installed. 308 309**Solution** 310 3111. Correct the parameter settings for implicit startup. 3122. Install the specified HAP. 313 314<!--Del--> 315## 16000020 Context Is Not an Ability-level Context 316 317**Error Message** 318 319The context is not ability context. 320 321**Description** 322 323This error code is reported when the passed Context object is not an ability-level context. 324 325**Possible Causes** 326 327The passed Context object is not a UIAbilityContext or an ExtensionContext, and does not inherit from the UIAbilityContext or ExtensionContext class. 328 329**Solution** 330 331Use a UIAbilityContext object or an ExtensionContext object as the input parameter, or use the object that inherits from the UIAbilityContext or ExtensionContext class as the input parameter. 332<!--DelEnd--> 333 334## 16000050 Internal Error 335 336**Error Message** 337 338Internal error. 339 340**Description** 341 342This error code is reported when an internal exception occurs that is beyond the control of the developer, such as memory allocation failure, multithreading issues, or IPC failure. 343 344**Possible Causes** 345 346This is a generic system error code and can be triggered by various issues depending on the API. Common causes include: null pointer exceptions for internal objects, processing timeouts, IPC failures, failure in obtaining application information, failure in obtaining system services, and reaching the maximum limit of launched ability instances. 347 348**Solution** 349 3501. Since this is a system-level error, it is typically out of the developer's control. You can try the operation again. 3512. If the ability fails to start, check whether the data passed in Want is too large. 352 353## 16000053 Ability Is Not on Top 354 355**Error Message** 356 357The ability is not on the top of the UI. 358 359**Description** 360 361This error code is reported when the ability is not displayed on the top of the UI. 362 363**Possible Causes** 364 365During the installation-free startup process, the ability is not displayed on the top of the UI. 366 367**Solution** 368 369Ensure that the ability is displayed on the top of the UI. 370 371## 16000055 Installation-Free Timeout 372 373**Error Message** 374 375Installation-free timed out. 376 377**Description** 378 379This error code is reported when the installation-free task times out. 380 381**Possible Causes** 382 383Installation-free times out. 384 385**Solution** 386 387Try again later. 388 389<!--Del--> 390## 16000058 Specified URI Flag Is Invalid 391 392**Error Message** 393 394Invalid URI flag. 395 396**Description** 397 398This error code is reported when the specified URI flag is invalid. 399 400**Possible Causes** 401 402An incorrect parameter is passed in. 403 404**Solution** 405 406Pass in a valid URI flag. 407 408## 16000059 Specified URI Type Is Invalid 409 410**Error Message** 411 412Invalid URI type. 413 414**Description** 415 416This error code is reported when the specified URI type is invalid. 417 418**Possible Causes** 419 420An incorrect parameter is passed in. Currently, URI authorization management supports only URIs of the file type. 421 422**Solution** 423 424Ensure that the input parameter is of the supported URI type. 425 426## 16000060 Sandbox Applications Cannot Authorize URIs 427 428**Error Message** 429 430A sandbox application cannot grant URI permission. 431 432**Description** 433 434This error code is reported when a sandbox application authorizes a URI. 435 436**Possible Causes** 437 438Sandbox applications cannot authorize URIs. 439 440**Solution** 441 442Use a non-sandbox application. 443<!--DelEnd--> 444 445## 16000061 Unsupported Operation 446 447**Error Message** 448 449Operation not supported. 450 451**Description** 452 453This error code is reported when an operation is not supported. 454 455**Possible Causes** 456 457The operation is not supported. 458 459**Solution** 460 461Perform a supported operation. 462 463## 16000062 Too Many Child Processes 464 465**Error Message** 466 467The number of child processes exceeds the upper limit. 468 469**Description** 470 471This error code is reported when the number of created child processes reaches the upper limit. 472 473**Possible Causes** 474 475The number of created child processes has reached the upper limit. 476 477**Solution** 478 479Limit the number of created child processes. The maximum number is 512. 480 481## 16000063 Invalid Ability During Application Restart 482 483**Error Message** 484 485The target to restart does not belong to the current application or is not a UIAbility. 486 487**Description** 488 489This error code is reported when the specified ability name or type is invalid during application restart. 490 491**Possible Causes** 492 493The specified ability name or type is invalid. 494 495**Solution** 496 497Ensure that the specified ability name exists in the current application and the ability type is UIAbility. 498 499## 16000064 Frequent Application Restart 500 501**Error Message** 502 503Restart too frequently. Try again at least 3s later. 504 505**Description** 506 507An API is called to restart the application and start a specified ability. This error code is reported when the API is called again within 3 seconds. 508 509**Possible Causes** 510 511The API is frequently called. 512 513**Solution** 514 515Call the API again after 3 seconds. 516 517## 16000065 API Can Be Called for a Foreground Ability 518 519**Error Message** 520 521The API can be called only when the ability is running in the foreground. 522 523**Description** 524 525This error code is reported when the API is called while the ability is not running in the foreground. 526 527**Possible Causes** 528 529The ability is not in the foreground when the API is called. 530 531**Solution** 532 533Switch the ability to the foreground before calling the API. 534 535## 16000066 Ability Cannot Be Switched to the Foreground or Background in Wukong Mode 536 537**Error Message** 538 539An ability cannot switch to the foreground or background in Wukong mode. 540 541**Description** 542 543This error code is reported when the API used to switch the ability to the foreground or background is called in Wukong mode. 544 545**Possible Causes** 546 547In Wukong mode, the ability cannot be switched to the foreground or background. 548 549**Solution** 550 551Exit wukong mode, and then call the API to switch the ability to the foreground or background. 552 553## 16000067 Ability Startup Parameter Verification Failure 554 555**Error Message** 556 557The StartOptions check failed. 558 559**Description** 560 561This error code is reported when verification on **StartOptions** fails. 562 563**Possible Causes** 564 5651. **startAbility()**, with **processMode** set to **NEW_PROCESS_ATTACH_TO_STATUS_BAR_ITEM** or **ATTACH_TO_STATUS_BAR_ITEM**, is called, but the application icon is not displayed in the status bar. 5662. **showAbility()** or **hideAbility()** is called, but the caller is not started in **NEW_PROCESS_ATTACH_TO_STATUS_BAR_ITEM** or **ATTACH_TO_STATUS_BAR_ITEM** mode. 567 568**Solution** 569 570Check whether the constraints for **StartOptions** are met. 571 572## 16000068 Ability Is Already Running 573 574**Error Message** 575 576The ability is already running. 577 578**Description** 579 580This error code is reported when the target ability is already running. 581 582**Possible Causes** 583 584**startAbility()** is called, with **processMode** and **startupVisibility** specified. **launchType** of the target ability is singleton or specified, and the target ability is running. 585 586**Solution** 587 588When **launchType** of the target ability is singleton or specified, do not specify **processMode** and **startupVisibility** in **startAbility()**. 589 590## 16000069 ExtensionAbility Fails to Start a Third-Party Application in Strict Mode 591 592**Error Message** 593 594The extension cannot start the third party application. 595 596**Description** 597 598This type of ExtensionAbility cannot start a third-party application in strict mode. 599 600**Possible Causes** 601 602The ExtensionAbility is in strict mode, and this type of ExtensionAbility is forbidden to start third-party applications in strict mode. 603 604**Solution** 605 6061. Check the conditions for enabling the strict mode of this [type of ExtensionAbility](../../application-models/extensionability-overview.md). 6072. Start the ExtensionAbility in non-strict mode. 608 609## 16000070 ExtensionAbility Fails to Start a ServiceExtensionAbility in Strict Mode 610 611**Error Message** 612 613The extension cannot start the service. 614 615**Description** 616 617This type of ExtensionAbility cannot start a ServiceExtensionAbility in strict mode. 618 619**Possible Causes** 620 621The ExtensionAbility is in strict mode, and this type of ExtensionAbility is forbidden to start a ServiceExtensionAbility in strict mode. 622 623**Solution** 624 6251. Check the conditions for enabling the strict mode of this [type of ExtensionAbility](../../application-models/extensionability-overview.md). 6262. Start the ExtensionAbility in non-strict mode. 627 628## 16000071 Application Clone Is Not Supported 629 630**Error Message** 631 632App clone is not supported. 633 634**Description** 635 636This error code is reported when the application does not support clones. 637 638**Possible Causes** 639 640This error code is reported when the [getCurrentAppCloneIndex](./js-apis-inner-application-applicationContext.md#applicationcontextgetcurrentappcloneindex12) API is called while the [multiAppMode](../../quick-start/app-configuration-file.md#multiappmode) field in the **app.json5** file is not set to **appClone** (meaning that the application does not support app clone mode). 641 642**Solution** 643 644Configure the **multiAppMode** field in the **app.json5** file by referring to [Creating an Application Multi-Instance](../../quick-start/multiInstance.md). After app clone mode is enabled, call the [getCurrentAppCloneIndex](./js-apis-inner-application-applicationContext.md#applicationcontextgetcurrentappcloneindex12) API. 645 646<!--Del--> 647## 16000072 Multi-App Mode Is Not Supported 648 649**Error Message** 650 651App clone or multi-instance is not supported. 652 653**Description** 654 655This error code is reported when the application does not support multi-app mode. 656 657**Possible Causes** 658 659The **getRunningMultiAppInfo()** API is called to query the information about an application that does not support multi-app mode. 660 661**Solution** 662 663When calling **getCurrentAppCloneIndex()**, ensure that the application supports multi-app mode. 664<!--DelEnd--> 665 666## 16000073 appCloneIndex Is Invalid 667 668**Error Message** 669 670The app clone index is invalid. 671 672**Description** 673 674This error code is reported when an invalid value of **appCloneIndex** is passed in. 675 676**Possible Causes** 677 6781. **startAbility()** is called, with **appCloneIndex** carried in **ohos.extra.param.key.appCloneIndex** set to an invalid value. 6792. **isAppRunning()** is called, with **appCloneIndex** set to an invalid value. 680 681**Solution** 682 683Check whether the constraints of **appCloneIndex** are met. 684 685## 16000074 Caller Corresponding to requestCode Does Not Exist When the Result Is Returned 686 687**Error Message** 688 689The caller does not exist. 690 691**Description** 692 693This error code is reported when the **backToCallerAbilityWithResult** API attempts to return the result to the caller but fails to find the caller based on **requestCode**. 694 695**Possible Causes** 696 6971. **requestCode** is not obtained from the **CALLER_REQUEST_CODE** field in **want**. 698 6992. The caller corresponding to **requestCode** has been destroyed or the result has been returned. 700 701**Solution** 702 7031. Check whether **requestCode** is obtained from **CALLER_REQUEST_CODE** in **want**. 704 7052. Check whether the caller has been destroyed or the result has been returned. 706 707## 16000075 Caller Cannot Be Started When the Result Is Returned 708 709**Error Message** 710 711BackToCaller is not supported. 712 713**Description** 714 715This error code is reported when the **backToCallerAbilityWithResult** API fails to return the result to the caller. 716 717**Possible Causes** 718 719The link feature is not configured for the application or the configuration is not approved by the system. 720 721**Solution** 722 7231. Ensure that the **linkFeature** field is configured in the **module.json5** file of the application. 7242. Ensure that the **linkFeature** field value of the application is correct, the functionality it describes matches the actual capability of the application link, and the configuration has been approved by the system. 725 726## 16000076 APP_INSTANCE_KEY Does Not Exist 727 728**Error Message** 729 730The app instance key is invalid. 731 732**Description** 733 734This error code is reported when the specified [APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) does not exist. 735 736**Possible Causes** 737 738The instance specified by [APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) does not exist. 739 740**Solution** 741 742Ensure that the value of [APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) is valid. 743 744## 16000077 Number of Application Instances Reaches the Upper Limit 745 746**Error Message** 747 748The number of app instances reaches the limit. 749 750**Description** 751 752This error code is reported when the number of application instances reaches the upper limit and more application instances try to be created. 753 754**Possible Causes** 755 756Before creating an application instance, the application does not check whether the number of application instances reaches the upper limit. 757 758**Solution** 759 760You can create application instances only after adjusting the upper limit of application instances or deleting existing application instances. 761 762## 16000078 Multi-Instance Mode Is Not Supported 763 764**Error Message** 765 766The multi-instance is not supported. 767 768**Description** 769 770This error code is reported when the application does not support multi-instance mode. 771 772**Possible Causes** 773 7741. Multi-instance mode is not configured for the application. 7752. The current device type does not support multi-instance mode. 776 777**Solution** 778 7791. Configure multi-instance mode for the application. 7802. Call the API to create multiple instances on a 2-in-1 device. 781 782## 16000079 APP_INSTANCE_KEY Cannot Be Specified 783 784**Error Message** 785 786The APP_INSTANCE_KEY cannot be specified. 787 788**Description** 789 790[APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) and [CREATE_APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) cannot be specified at the same time. This error code is reported when both of them are specified. 791 792**Possible Causes** 793 794Too many parameters are passed. 795 796**Solution** 797 798Specify either [APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) or [CREATE_APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params). 799 800## 16000080 New Instances Cannot Be Created 801 802**Error Message** 803 804Creating a new instance is not supported. 805 806**Description** 807 808Applications can use [CREATE_APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) to create their own instances, but not for other applications. Otherwise, this error code is reported. 809 810**Possible Causes** 811 812The parameter use scenario is incorrect. 813 814**Solution** 815 816Delete the [CREATE_APP_INSTANCE_KEY](js-apis-app-ability-wantConstant.md#params) parameter. 817 818<!--Del--> 819## 16000081 Failed to Obtain the Target Application Information 820 821**Error Message** 822 823Failed to obtain the target application information. 824 825**Description** 826 827In the call of an [API related to URI authorization](js-apis-uripermissionmanager-sys.md), the information about the target application cannot be obtained based on the bundle name and clone index. 828 829**Possible Causes** 830 8311. The target application is not installed. 8322. The clone index is out of range. 8333. The target application does not have a clone of the specified index. 834 835**Solution** 836 8371. Check whether the application has been installed. 8382. Check whether the index is within the allowed range. 8393. Check whether the target application has created a clone of the specified index. 840<!--DelEnd--> 841 842## 16000084 Only One DelegatorAbility Is Allowed to Call the API 843 844**Error Message** 845 846Only DelegatorAbility is allowed to call this API, and only once. 847 848**Description** 849 850The system allows the DelegatorAbility to call this API only once. 851 852**Possible Causes** 853 8541. The caller is not a DelegatorAbility. 8552. The caller is a DelegatorAbility, but it calls the API repeatedly. 856 857**Solution** 858 8591. Check whether the caller is a DelegatorAbility. 8602. Check whether the API is being called repeatedly. 861 862## 16000085 Error Occurs During the Interaction Between the Ability and Window 863 864**Error Message** 865 866An error occurred during the interaction between the ability and window. 867 868**Description** 869 870An error occurs during the interaction between the ability and the window. 871 872**Possible Causes** 873 874The window service process is abnormal. 875 876**Solution** 877 878This is a system error. Try calling the API again. 879 880## 16000086 Context Is Not a UIAbilityContext 881 882**Error Message** 883 884The context is not UIAbilityContext. 885 886**Description** 887 888This error code is reported when the passed Context object is not a UIAbilityContext. 889 890**Possible Causes** 891 892The passed Context object is not a UIAbilityContext or does not inherit from the UIAbilityContext class. 893 894**Solution** 895 896Use a UIAbilityContext object or an object that inherits from the UIAbilityContext class as the input parameter. 897 898## 16000090 Caller Is Not an Atomic Service 899 900**Error Message** 901 902The caller is not an atomic service. 903 904**Description** 905 906This error code is reported when the caller is not an atomic service. 907 908**Possible Causes** 909 910The API caller is not an atomic service. 911 912**Solution** 913 914The application does not support this API. 915 916<!--Del--> 917## 16000091 Failed to Obtain a File URI by Key 918 919**Error Message** 920 921Failed to get the file URI from the key. 922 923**Description** 924 925This error code is reported when attempting to obtain a file URI based on the key fails. 926 927**Possible Causes** 928 9291. The key is empty. 9302. The key does not belong to the current caller. 9313. The key is not a data path of a specific service. 9324. The data corresponding to the key in the UDMF is not entirely composed of file URIs. 933 934**Solution** 935 9361. Ensure that the key is created by the caller. 9372. Ensure that the key is a data path of a specific service. For details, see [UDMF Data Path](../apis-arkdata/js-apis-data-unifiedDataChannel.md#intention). 9383. Ensure that the data written in the UDMF when creating the key is entirely composed of file URIs. 939 940## 16000092 No Permission to Authorize URI 941 942**Error Message** 943 944No permission to authorize the URI. 945 946**Description** 947 948This error code is reported when the caller does not have the permission to authorize the URI. 949 950**Possible Causes** 951 952The URIs written when the key is created include URIs that cannot be authorized. 953 954**Solution** 955 956Ensure that all URIs written when the key is created are authorized. 957 958## 16000093 Invalid Caller Token ID 959 960**Error Message** 961 962The caller token ID is invalid. 963 964**Description** 965 966This error code is reported when the token ID of the caller is invalid. 967 968**Possible Causes** 969 970The system does not find the application corresponding to **callerTokenId**. 971 972**Solution** 973 974Check whether the application corresponding to **callerTokenId** is installed. 975 976## 16000094 Invalid Target Token ID 977 978**Error Message** 979 980The target token ID is invalid. 981 982**Description** 983 984This error code is reported when the token ID of the target application is invalid. 985 986**Possible Causes** 987 9881. The system does not find the application corresponding to **targetTokenId**. 9892. **targetTokenId** and **callerTokenId** are the same application. 990 991**Solution** 992 9931. Ensure that the application corresponding to **targetTokenId** is installed. 9942. Ensure that **callerTokenId** and **targetTokenId** are not the same application. 995<!--DelEnd--> 996 997## 16000100 Failed to Call AbilityMonitor APIs to Listen for Ability Lifecycle Changes 998 999**Error Message** 1000 1001 - Calling AddAbilityMonitor failed. 1002 1003 - Calling AddAbilityMonitorSync failed. 1004 1005 - Calling RemoveAbilityMonitor failed. 1006 1007 - Calling RemoveAbilityMonitorSync failed. 1008 1009 - Calling WaitAbilityMonitor failed. 1010 1011 - Calling GetCurrentTopAbility failed. 1012 1013 - Calling DoAbilityForeground failed. 1014 1015 - Calling DoAbilityBackground failed. 1016 1017 - Calling FinishTest failed. 1018 1019 - Calling AddAbilityStageMonitor failed. 1020 1021 - Calling AddAbilityStageMonitorSync failed. 1022 1023 - Calling RemoveAbilityStageMonitor failed. 1024 1025 - Calling RemoveAbilityStageMonitorSync failed. 1026 1027 - Calling WaitAbilityStageMonitor failed. 1028 1029**Description** 1030 1031This error code is reported when an AbilityMonitor API for monitoring the lifecycle change of a specified ability fails to be executed. 1032 1033**Possible Causes** 1034 1035Creating an AbilityDelegatorRegistry instance fails. 1036 1037**Solution** 1038 1039Check whether an AbilityDelegatorRegistry instance is created. 1040 1041## 16000110 Application Is Not in the Kiosk Mode List 1042 1043**Error Message** 1044 1045Current application is not in kiosk app list, can not exit kiosk mode. 1046 1047**Description** 1048 1049The current application is not in the list of applications configured to support kiosk mode in EDM. Attempting to enter or exit kiosk mode will return this error code. 1050 1051**Possible Causes** 1052 1053The application is not in the list of applications configured to support kiosk mode in EDM. 1054 1055**Solution** 1056 1057Check whether the application is in the list of applications configured to support kiosk mode in EDM. 1058 1059## 16000111 Application Is Already in Kiosk Mode 1060 1061**Error Message** 1062 1063System is already in kiosk mode, can not enter again. 1064 1065**Description** 1066 1067The system already has an application in kiosk mode. Attempting to enter kiosk mode again will return this error code. 1068 1069**Possible Causes** 1070 1071An application is already in kiosk mode. 1072 1073**Solution** 1074 1075Check whether any application in the system is already in kiosk mode. 1076 1077## 16000112 No Application Is in Kiosk Mode 1078 1079**Error Message** 1080 1081Current application is not in kiosk mode, can not exit. 1082 1083**Description** 1084 1085No application in the system is in Kiosk mode. Attempting to exit kiosk mode will return this error code. 1086 1087**Possible Causes** 1088 1089No application is in kiosk mode. 1090 1091**Solution** 1092 1093Check whether any application in the system is in Kiosk mode. 1094 1095## 16000113 Ability Is Not in the Foreground 1096 1097**Error Message** 1098 1099Current ability is not in foreground. 1100 1101**Description** 1102 1103When the ability is not in the foreground, attempting to perform operations that require the foreground will return this error code. 1104 1105**Possible Causes** 1106 1107The current ability is not in the foreground. 1108 1109**Solution** 1110 1111Check whether the ability is in the foreground. 1112 1113<!--Del--> 1114## 16000120 Number of Elements in wantList Exceeds 4 or Is Less Than 1 1115 1116**Error Message** 1117 1118A maximum of four UIAbility instances can be started simultaneously.The current parameter exceeds the maximum number or is less than 1. 1119 1120**Description** 1121 1122The input parameter is incorrect. The **wantList** parameter must contain 1 to 4 Want objects. 1123 1124**Possible Causes** 1125 1126The **wantList** parameter contains more than four or less than one element. 1127 1128**Solution** 1129 1130Ensure that the **wantList** parameter contains 1 to 4 Want objects. 1131 1132## 16000121 Target Component Is Not a UIAbility 1133 1134**Error Message** 1135 1136The target component type is not a UIAbility. 1137 1138**Description** 1139 1140The target component is not a UIAbility. 1141 1142**Possible Causes** 1143 1144**startUIAbilities** can start only UIAbility components. This error code is reported when the target component is not a UIAbility. 1145 1146**Solution** 1147 1148Check the component type passed in the Want and ensure that the component is a UIAbility. 1149 1150## 16000122 Target Component Is Intercepted by the System Control Module 1151 1152**Error Message** 1153 1154The target component is blocked by the system module and does not support startup. 1155 1156**Description** 1157 1158The target component is intercepted by the system control module and cannot be started. 1159 1160**Possible Causes** 1161 1162The system control module has blocked the startup of the target application. 1163 1164**Solution** 1165 1166If the target UIAbility cannot be started, try to start another UIAbility. 1167 1168## 16000123 Implicit Startup Is Not Supported 1169 1170**Error Message** 1171 1172Implicit startup is not supported. 1173 1174**Description** 1175 1176Implicit startup is not supported. 1177 1178**Possible Causes** 1179 1180The **wantList** parameter contains an implicit Want. 1181 1182**Solution** 1183 1184Check the **wantList** parameter and ensure that no implicit Want exists. If implicit Want exists, change it to explicit Want. 1185 1186## 16000124 Starting a Distributed UIAbility Is Not Supported 1187 1188**Error Message** 1189 1190Starting a remote UIAbility is not supported. 1191 1192**Description** 1193 1194This error code is reported when you attempt to start a remote UIAbility. 1195 1196**Possible Causes** 1197 1198The **deviceId** field in the Want is not empty and is not the local device ID. 1199 1200**Solution** 1201 1202Set the **deviceId** field in the Want to an empty string or the local device ID. 1203 1204## 16000125 Starting a Plugin Is Not Supported 1205 1206**Error Message** 1207 1208Starting a plugin UIAbility is not supported. 1209 1210**Description** 1211 1212This error code is reported when you attempt to start a plugin. 1213 1214**Possible Causes** 1215 1216The **parameters** field in the Want is set to start the UIAbility of the plugin. 1217 1218**Solution** 1219 1220Check the **parameters** field in the Want and do not set **ohos.params.pluginAbility** to **true**. 1221 1222## 16000126 DLP Files Cannot Be Started 1223 1224**Error Message** 1225 1226Starting DLP files is not supported. 1227 1228**Description** 1229 1230This error code is reported when you attempt to start a DLP file. 1231 1232**Possible Causes** 1233 1234A DLP file is passed in the Want. 1235 1236**Solution** 1237 1238Check whether the Want carries a DLP file. 1239<!--DelEnd--> 1240 1241## 16000151 Invalid wantAgent Object 1242 1243**Error Message** 1244 1245Invalid wantAgent object. 1246 1247**Description** 1248 1249This error code is reported when the wantAgent object passed in the API is invalid. 1250 1251**Possible Causes** 1252 12531. The wantAgent object is invalid. 12542. A third-party application attempts to set the ability of another application. 12553. An internal communication error occurs. 1256 1257**Solution** 1258 12591. Ensure that the wantAgent object passed in the API exists. 12602. Check whether the caller is a third-party application. Third-party applications cannot set the abilities of other applications. 1261 1262<!--Del--> 1263## 16000153 wantAgent Object Is Canceled 1264 1265**Error Message** 1266 1267The WantAgent has been canceled. 1268 1269**Description** 1270 1271This error code is reported when the wantAgent object passed in the API has been canceled. 1272 1273**Possible Causes** 1274 1275The wantAgent object passed to the API has been canceled. 1276 1277**Solution** 1278 1279Use the wantAgent object that is not canceled. 1280<!--DelEnd--> 1281 1282## 16000200 Caller Is Not Allowed to Start a Background Service of the Application 1283 1284**Error Message** 1285 1286The caller is not in the appIdentifierAllowList of the target application. 1287 1288**Description** 1289 1290This error code is reported when the caller is not in the [appIdentifierAllowList](../../quick-start/module-configuration-file.md#extensionabilities) of the target application. 1291 1292**Possible Causes** 1293 1294The **app-identifier** of the caller of [startAppServiceExtensionAbility](js-apis-inner-application-uiAbilityContext.md#startappserviceextensionability20) or [stopAppServiceExtensionAbility](js-apis-inner-application-uiAbilityContext.md#stopappserviceextensionability20) is not in the [appIdentifierAllowList](../../quick-start/module-configuration-file.md#extensionabilities) of the target [AppServiceExtensionAbility](js-apis-app-ability-appServiceExtensionAbility.md). 1295 1296**Solution** 1297 1298Configure the **app-identifier** of the API caller in the [appIdentifierAllowList](../../quick-start/module-configuration-file.md#extensionabilities) of the target [AppServiceExtensionAbility](js-apis-app-ability-appServiceExtensionAbility.md). 1299 1300## 16000201 Target Service Is Not Started 1301 1302**Error Message** 1303 1304The target service has not been started yet. 1305 1306**Description** 1307 1308This error code is reported when the target service is not started. 1309 1310**Possible Causes** 1311 1312When the [connectAppServiceExtensionAbility](js-apis-inner-application-uiAbilityContext.md#connectappserviceextensionability20) API is used, the server is not started, and the current application does not have the permission to start the target service. 1313 1314**Solution** 1315 13161. Wait until the service is started and then reconnect to it. 13172. When the current application starts the target service, the **app-identifier** of the API caller must be configured in the [appIdentifierAllowList](../../quick-start/module-configuration-file.md#extensionabilities) of the target [AppServiceExtensionAbility](js-apis-app-ability-appServiceExtensionAbility.md). 1318 1319## 16200001 Caller Released 1320 1321**Error Message** 1322 1323The caller has been released. 1324 1325**Description** 1326 1327This error code is reported when the caller has been released. 1328 1329**Possible Causes** 1330 1331The caller has been released. 1332 1333**Solution** 1334 13351. Register a valid caller again. 13362. Check whether the ability corresponding to the context is still running when **context.startAbility** is called. This error code is thrown when the ability has been destructed. 13373. If **startAbility()** and **terminateSelf()** are called consecutively, ensure that a success or failure callback for **startAbility()** is received before calling **terminateSelf()**. 1338 1339## 16200002 Invalid Callee 1340 1341**Error Message** 1342 1343The callee does not exist. 1344 1345**Description** 1346 1347This error code is reported when the callee is invalid. 1348 1349**Possible Causes** 1350 1351The callee does not exist. 1352 1353**Solution** 1354 1355Use a valid callee. 1356 1357## 16200004 Method Registered 1358 1359**Error Message** 1360 1361The method has been registered. 1362 1363**Description** 1364 1365This error code is reported when the method has been registered. 1366 1367**Possible Causes** 1368 1369The method has been registered by the callee. 1370 1371**Solution** 1372 1373Check whether the method has been registered. 1374 1375## 16200005 Method Not Registered 1376 1377**Error Message** 1378 1379The method has not been registered. 1380 1381**Description** 1382 1383This error code is reported when the method has not been registered. 1384 1385**Possible Causes** 1386 1387The method has not been registered by the callee. 1388 1389**Solution** 1390 1391Check whether the method has been registered. 1392 1393<!--Del--> 1394## 16200006 No Permission to Enable or Disable the Resident Process 1395 1396**Error Message** 1397 1398The caller application can only set the resident status of the configured process. 1399 1400**Description** 1401 1402This error code is reported when the caller does not have the permission to enable or disable the resident process. 1403 1404**Possible Causes** 1405 1406The caller does not have the permission to enable or disable the resident process. 1407 1408**Solution** 1409 1410Ensure that the caller has the required permission before calling this API. 1411 1412## 16300001 Nonexistent Mission 1413 1414**Error Message** 1415 1416Mission not found. 1417 1418**Description** 1419 1420This error code is reported when the specified mission does not exist. 1421 1422**Possible Causes** 1423 1424The mission does not exist. 1425 1426**Solution** 1427 1428Check the mission ID. 1429 1430## 16300002 Nonexistent Mission Listener 1431 1432**Error Message** 1433 1434The specified mission listener does not exist. 1435 1436**Description** 1437 1438This error code is reported when the specified mission listener does not exist. 1439 1440**Possible Causes** 1441 1442The mission listener does not exist. 1443 1444**Solution** 1445 1446Check the mission listener ID. 1447<!--DelEnd--> 1448 1449## 16300003 Target Application Is Not the Invoker Application 1450 1451**Error Message** 1452 1453The target application is not the current application. 1454 1455**Description** 1456 1457This error code is reported when the application to start is not the application that calls the API. 1458 1459**Possible Causes** 1460 1461The application to start and the invoker application are not the same application. 1462 1463**Solution** 1464 1465Ensure that the application to start is the invoker application. 1466 1467<!--Del--> 1468## 18500001 Invalid Bundle Name 1469 1470**Error Message** 1471 1472The bundle does not exist or no patch has been applied. 1473 1474**Description** 1475 1476This error code is reported when the specified bundle name is invalid. 1477 1478**Possible Causes** 1479 1480The bundle does not exist or is not installed. 1481 1482**Solution** 1483 1484Check whether the bundle has been installed. 1485 1486## 18500002 Invalid Patch Package 1487 1488**Error Message** 1489 1490Invalid patch package. 1491 1492**Description** 1493 1494This error code is returned when the specified patch package is invalid. 1495 1496**Possible Causes** 1497 1498The patch package does not exist or is inaccessible. 1499 1500**Solution** 1501 15021. Check whether the path of the patch package is valid. 15032. Check whether the application has the permission to access the patch package. 1504 1505## 18500008 Internal Error 1506 1507**Error Message** 1508 1509Internal error. 1510 1511**Description** 1512 1513This error code is reported when an error occurs during internal processing, such as memory application or multithreading processing. 1514 1515**Possible Causes** 1516 1517Common kernel errors such as memory application and multithreading processing errors occur. 1518 1519**Solution** 1520 1521Ensure sufficient system memory. 1522 1523## 18500009 Application Has a Quick Fix Task Being Processed 1524 1525**Error Message** 1526 1527The application has an ongoing quick fix task. 1528 1529**Description** 1530 1531This error code is reported when the application has a quick fix task that is under processing. 1532 1533**Possible Causes** 1534 1535When you try to cancel a quick fix task for an application, the application has a quick repair task that is under processing. 1536 1537**Solution** 1538 1539Wait until the quick fix task is complete. 1540<!--DelEnd--> 1541 1542## 16300004 Observer Does Not Exist 1543 1544**Error Message** 1545 1546The observer does not exist. 1547 1548**Description** 1549 1550This error code is reported when the specified observer does not exist. 1551 1552**Possible Causes** 1553 1554The observer does not exist or has been unregistered. 1555 1556**Solution** 1557 1558Check whether the observer exists. 1559 1560<!--Del--> 1561## 16300005 Bundle Information Does Not Exist 1562 1563**Error Message** 1564 1565The target bundle does not exist. 1566 1567**Description** 1568 1569This error code is reported when the bundle information of the preinstalled application does not exist. 1570 1571**Possible Causes** 1572 1573The value of **bundleName**, **userId**, or **appIndex** is incorrect, leading to the query failure. 1574 1575**Solution** 1576 1577Pass in correct values for **bundleName**, **userId**, and **appIndex**. 1578 1579## 16300008 Specified Package Does Not Have a Main UIAbility 1580 1581**Error Message** 1582 1583The target bundle has no MainAbility. 1584 1585**Description** 1586 1587This error code is reported when the application does not have a main UIAbility. 1588 1589**Possible Causes** 1590 1591The ability configured for **mainElement** is not a UIAbility. 1592 1593**Solution** 1594 1595Check whether the ability configured for **mainElement** in the **module.json** file is a UIAbility. 1596 1597## 16300009 Specified Package Does Not Have a Status Bar 1598 1599**Error Message** 1600 1601The target bundle has no status-bar ability. 1602 1603**Description** 1604 1605This error code is reported when the application does not have a status bar. 1606 1607**Possible Causes** 1608 1609The application does not have a status bar. 1610 1611**Solution** 1612 1613Check whether the application has a status bar. 1614 1615## 16300010 Running Application Is Not Attached to a Status Bar 1616 1617**Error Message** 1618 1619The target application is not attached to the status bar. 1620 1621**Description** 1622 1623This error code is reported when the application is not attached to a status bar after running. 1624 1625**Possible Causes** 1626 1627The application has a status bar, but it is not attached to the status bar during running. 1628 1629**Solution** 1630 1631Check whether the application is attached to a status bar. 1632<!--DelEnd--> 1633 1634## 29600001 Internal Error During Image Editing 1635 1636**Error Message** 1637 1638Internal error. 1639 1640**Description** 1641 1642This error code is reported when an internal error such as memory allocation or multithreaded processing exception occurs during image saving. 1643 1644**Possible Causes** 1645 1646Common kernel errors such as memory application and multithreading processing errors occur. The possible causes are as follows: The internal object is empty, and the processing times out. 1647 1648**Solution** 1649 16501. Ensure sufficient system memory. Ensure that the system version used by the device is normal. 16512. Restart the device. 1652 1653## 29600002 Internal Error During Image Editing 1654 1655**Error Message** 1656 1657Image input error. 1658 1659**Description** 1660 1661This error code is reported when the image URI does not exist or the image cannot be parsed. 1662 1663**Possible Causes** 1664 1665The URI does not exist or the URI does not point to an image file. 1666 1667**Solution** 1668 1669Check whether the file exists and whether the file type is image. 1670 1671## 29600003 Image Too Large 1672 1673**Error Message** 1674 1675Image too big. 1676 1677**Description** 1678 1679The image is too large. 1680 1681**Possible Causes** 1682 1683This error code is reported when the size of the image exceeds 50 MB. 1684 1685**Solution** 1686 16871. Limit the size of the edited image to less than 50 MB. 16882. Verify the image size in advance. 1689 1690<!--Del--> 1691## 16300007 Download and Installation Task Information of the Atomic Service Does Not Exist 1692 1693**Error Message** 1694 1695The target free-installation task does not exist. 1696 1697**Description** 1698 1699This error code is reported when the download and installation task of the specified atomic service does not exist while the atomic service window is opened. 1700 1701**Possible Causes** 1702 1703The value of **bundleName**, **moduleName**, **abilityName**, or **startTime** is incorrect, leading to the query failure. 1704 1705**Solution** 1706 1707Pass in correct values for **bundleName**, **moduleName**, **abilityName**, and **startTime**. 1708<!--DelEnd--> 1709 1710## 28800001 Startup Task or Dependency Not Found 1711 1712**Error Message** 1713 1714Startup task or its dependency not found. 1715 1716**Description** 1717 1718This error code is reported if the startup task or its dependency is not found during task startup. 1719 1720**Possible Causes** 1721 1722The startup task or dependency is not correctly configured. 1723 1724**Solution** 1725 1726Check whether the AppStartup configuration file is correctly compiled, and ensure that all configured startup tasks are implemented. 1727 1728## 28800002 Circular Dependencies Between Startup Tasks 1729 1730**Error Message** 1731 1732The startup tasks have circular dependencies. 1733 1734**Description** 1735 1736This error code is reported if circular dependencies are detected between startup tasks during startup task loading. 1737 1738**Possible Causes** 1739 1740There are circular dependencies between startup tasks. 1741 1742**Solution** 1743 1744Check the AppStartup configuration file, and ensure that no circular dependency exists between startup tasks. 1745 1746## 28800003 Error Occurs During Task Startup 1747 1748**Error Message** 1749 1750An error occurred while running the startup tasks. 1751 1752**Description** 1753 1754This error code is reported when an error occurs during task startup. 1755 1756**Possible Causes** 1757 1758The code logic for starting the task is incorrect, or no exception handling is available. 1759 1760**Solution** 1761 1762Check whether the startup task has logic errors, and ensure that each startup task contains the exception handling logic. 1763 1764## 28800004 Executing the Startup Task Times Out 1765 1766**Error Message** 1767 1768Running startup tasks timeout. 1769 1770**Description** 1771 1772This error code is reported if the execution time of a task exceeds the timeout interval (10000 ms by default). 1773 1774**Possible Causes** 1775 1776The startup task contains a large number of time-consuming operations, or the configured timeout interval is too short. 1777 1778**Solution** 1779 1780Adjust the timeout interval as required. For details about how to set the timeout interval, see [Setting Startup Parameters](../../application-models/app-startup.md#setting-startup-parameters). 1781 1782<!--Del--> 1783## 16400001 Target Application Type Is Not a System HSP 1784 1785**Error Message** 1786 1787The input bundleName is not a system HSP. 1788 1789**Description** 1790 1791When the [createSystemHspModuleResourceManager](js-apis-inner-application-context-sys.md#createsystemhspmoduleresourcemanager12) API is used to create a [ResourceManager](../apis-localization-kit/js-apis-resource-manager.md#resourcemanager), if the passed **bundleName** does not belong to a module of a [system HSP](../../quick-start/application-package-glossary.md#system-level-hsp), this error code is reported. 1792 1793**Possible Causes** 1794 1795The **bundleName** parameter passed to **createSystemHspModuleResourceManager** is not the bundle name of the HSP preconfigured in the system by the OEM. 1796 1797**Solution** 1798 1799Check whether the value of **bundleName** is correct. 1800 1801## 16000202 Keep-Alive Can Be Set Only for an ExtensionAbility of the appService Type 1802 1803**Error Message** 1804 1805Invalid main element type. 1806 1807**Description** 1808 1809This error code is reported when the object to be kept alive is not an ExtensionAbility of the appService type. 1810 1811**Possible Causes** 1812 1813The **mainElement** field in the **module.json5** file of the entry HAP is not an ExtensionAbility of the appService type. 1814 1815**Solution** 1816 1817Change the **mainElement** field of the entry HAP in the **module.json5** file to an ExtensionAbility of the appService type. 1818 1819## 16000203 Cannot Change the Keep-alive Status of an AppServiceExtensionAbility 1820 1821**Error Message** 1822 1823Cannot change the keep-alive status. 1824 1825**Description** 1826 1827This error code is reported when the keep-alive status of an AppServiceExtensionAbility cannot be changed. 1828 1829**Possible Causes** 1830 1831The keep-alive policy of the AppServiceExtensionAbility is set by the MDM to be uncancelable by users or is set to keep-alive by other users. 1832 1833**Solution** 1834 1835Cancel the keep-alive setting on the MDM server, or set the keep-alive policy to allow users to cancel the keep-alive. Cancel the keep-alive of the AppServiceExtensionAbility for the user who has the keep-alive permission. 1836 1837## 16000204 Application Is Not Installed for the User with userId of 1 1838 1839**Error Message** 1840 1841The target bundle is not in u1. 1842 1843**Description** 1844 1845This error code is reported when the specified application is not installed under the user with **userId** of 1. 1846 1847**Possible Causes** 1848 1849The specified application is not installed under the user with **userId** of 1. 1850 1851**Solution** 1852 1853Install the specified application under the user with **userId** of 1. 1854<!--DelEnd--> 1855 1856## 16000115 Process Is Not Running the Component with isolationProcess Set to true 1857 1858**Error Message** 1859 1860The current process is not running a component configured with "isolationProcess" and cannot be set as a candidate master process. 1861 1862**Description** 1863 1864This error code is reported when you attempt to set a process, which is not running any component configured with **isolationProcess**, as a candidate master process. 1865 1866**Possible Causes** 1867 1868The current process is not running any component configured with **isolationProcess** and therefore cannot be designated as a candidate master process. 1869 1870**Solution** 1871 1872No action can be taken. Since the current process is not running any component with **isolationProcess** set to **true**, it cannot be set as a candidate master process. 1873 1874## 16000116 Process Is Already a Master Process 1875 1876**Error Message** 1877 1878The current process is already a master process and does not support cancellation. 1879 1880**Description** 1881 1882This error code is reported when you attempt to cancel the current process, which is already the master process, as a candidate master process. 1883 1884**Possible Causes** 1885 1886The current process is already the main process. 1887 1888**Solution** 1889 1890No action can be taken. Cancellation is not supported since the current process is already the master process. 1891 1892## 16000117 Process Is Not a Candidate Master Process 1893 1894**Error Message** 1895 1896The current process is not a candidate master process and does not support cancellation. 1897 1898**Description** 1899 1900This error code is reported when you attempt to cancel the current process, which is not a candidate master process , as a candidate master process. 1901 1902**Possible Causes** 1903 1904The current process is not a candidate master process and cannot be canceled. 1905 1906**Solution** 1907 1908No action can be taken. Cancellation is not supported since the current process is not a candidate master process. 1909 1910<!--no_check-->