1# workScheduler Error Codes 2 3> **NOTE** 4> 5> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 6 7## 9700001 Memory Operation Failure 8 9**Error Message** 10 11Memory operation failed. 12 13**Description** 14 15This error code is reported when a memory operation fails. 16 17**Possible Causes** 18 191. A memory leak occurs. 202. The system memory is insufficient. 21 22**Solution** 23 241. Release the memory. 252. Check whether memory leak occurs. 26 27## 9700002 Parcel Operation Failure 28 29**Error Message** 30 31Failed to write data into parcel. Possible reasons: 1. Invalid parameters; 2. Failed to apply for memory. 32 33**Description** 34 35This error code is reported when parcel data fails to be read or written during IPC. 36 37**Possible Causes** 38 391. The data object fails to be read or written during IPC. 402. The memory fails to be allocated for the read or write operation. 41 42**Solution** 43 44Try again later or restart the device. 45 46## 9700003 System Service Failure 47 48**Error Message** 49 50System service operation failed. 51 52**Description** 53 54This error code is reported when the client process fails to obtain the system service. 55 56**Possible Causes** 57 581. The system service is not started. 592. The system service is abnormal. 60 61**Solution** 62 63Try again later or restart the device. 64 65## 9700004 workInfo Verification Failure 66 67**Error Message** 68 69Check on workInfo failed. 70 71**Description** 72 73This error code is reported when the **workInfo** parameter is abnormal. 74 75**Possible Causes** 76 771. The value of **bundleName** in **workInfo** does not match the UID of the application. 782. The Work Scheduler task to cancel or query does not exist. 79 80**Solution** 81 82Check the **workInfo** parameters. 83 84## 9700005 startWork Call Failure 85 86**Error Message** 87 88Calling startWork failed. 89 90**Description** 91 92This error code is reported when the request for a deferred task fails. 93 94**Possible Causes** 95 961. The Work Scheduler task already exists. 972. The application has already requested 10 Work Scheduler tasks. 983. The repeat interval of a Work Scheduler task must be at least 20 minutes. 99 100**Solution** 101 102Check the input parameters and application code. 103