1# User Preference 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## 15500010 Failed to Delete the User Preference Persistence File 8**Error Message** 9 10Failed to delete preferences file. 11 12**Description** 13 14The operation of deleting the user preference persistence file failed. 15 16**Possible Causes** 17 18The possible causes are as follows: 191. The file name is incorrect. 202. The file path is incorrect. 21 22**Solution** 23 241. Check that the file name is correct. 252. Check that the file path is correct. 26 27## 15500019 Failed to Obtain the Subscription Service 28 29**Error Message** 30 31Failed to obtain subscription service. 32 33**Description** 34 35Failed to obtain the subscription service in inter-process event subscription. 36 37**Possible Causes** 38 39The platform does not support service subscription. 40 41**Solution** 42 43Deploy the subscription service on the platform. 44 45## 14801001 Stage Model Required 46 47**Error Message** 48 49 Only supported in stage mode. 50 51**Description** 52 53This operation can be performed only on the stage model. 54 55**Possible Causes** 56 57The context is not a stage model. 58 59**Solution** 60 61Perform the operation on the stage model. 62 63## 15501002 The dataGroupId parameter in Options is invalid. 64 65**Error Message** 66 67The data group id is not valid. 68 69**Description** 70 71The **dataGroupId** parameter is invalid. 72 73**Possible Causes** 74 75The **dataGroupId** is not obtained from the AppGallery. 76 77**Solution** 78 79Obtain **dataGroupId** from the AppGallery and pass it correctly. 80