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## 15500000 Internal Error
8**Error Message**
9
10Inner error.
11
12**Description**
13
14An internal error occurred.
15
16**Possible Causes**
17
18The persistent file fails to be read or written.
19
20**Procedure**
21
22Locate the cause based on the log information or contact the technical support.
23
24## 15500010 Failed to Delete the User Preference Persistence File
25**Error Message**
26
27Failed to delete preferences file.
28
29**Description**
30
31The operation of deleting the user preference persistence file failed.
32
33**Possible Causes**
34
35The possible causes are as follows:
361. The file name is incorrect.
372. The file path is incorrect.
38
39**Solution**
40
411. Check that the file name is correct.
422. Check that the file path is correct.
43
44## 15500019 Failed to Obtain the Subscription Service
45
46**Error Message**
47
48Failed to obtain subscription service.
49
50**Description**
51
52Failed to obtain the subscription service in inter-process event subscription.
53
54**Possible Causes**
55
56The platform does not support service subscription.
57
58**Solution**
59
60Deploy the subscription service on the platform.
61
62## 15501001 Stage Model Required
63
64**Error Message**
65
66 Only supported in stage mode.
67
68**Description**
69
70This operation can be performed only on the stage model.
71
72**Possible Causes**
73
74The context is not a stage model.
75
76**Solution**
77
78Perform the operation on the stage model.
79
80## 15501002 The dataGroupId parameter in Options is invalid.
81
82**Error Message**
83
84The data group id is not valid.
85
86**Description**
87
88The **dataGroupId** parameter is invalid.
89
90**Possible Causes**
91
92The **dataGroupId** is not obtained from the AppGallery.
93
94**Solution**
95
96Obtain **dataGroupId** from the AppGallery and pass it correctly.
97