1# Device Management 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## 11600101 Service Invoking Exception 8 9**Error Message** 10 11Failed to execute the function. 12 13**Possible Causes** 14 15An error occurred during internal invocation. 16 17**Solution** 18 19Call the API again. 20 21## 11600102 Failed to Obtain the Service 22 23**Error Message** 24 25Failed to obtain the service. 26 27**Possible Causes** 28 29The service is not started or fails to start. 30 31**Solution** 32 33Make sure the service is started and obtain the service again. 34 35## 11600103 Authentication Unavailable 36 37**Error Message** 38 39Authentication invalid. 40 41**Possible Causes** 42 43The last authentication service is still in progress. 44 45**Solution** 46 47Wait until the last authentication service is complete and call the authentication API again. 48 49## 11600104 Discovery Unavailable 50 51**Error Message** 52 53Discovery invalid. 54 55**Possible Causes** 56 57The last discovery service is still in progress. 58 59**Solution** 60 61Wait until the last discovery service is complete and call the discovery API again. 62 63## 11600105 Publish Unavailable 64 65**Error Message** 66 67Publish invalid. 68 69**Possible Causes** 70 71The last publish service is still in progress. 72 73**Solution** 74 75Wait until the last publish service is complete and call the publish API again. 76