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1# Ads Service Framework Error Codes
2
3
4<!--RP1-->
5> **NOTE**
6>
7> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md).
8<!--RP1End-->
9
10## 21800001 Internal System Error
11
12<!--RP2--> **Error Message**<!--RP2End-->
13
14System internal error.
15
16
17<!--RP3-->
18**Description**
19
20This error code is reported if an internal system error occurs.
21<!--RP3End-->
22
23**Possible Causes**
24
25Failed to connect to the OAID service.
26
27**Procedure**
28
29Check whether the service is running properly.
30
31
32## 21800003 Ad Loading Failure
33
34**Error Message**
35
36Failed to load the ad request.
37
38**Description**
39
40This error code is reported if loading the ad fails.
41
42**Possible Causes**
43
44The network connection is abnormal, or an ad request parameter is incorrect.
45
46**Procedure**
47
48Check the network status, and correct the ad request parameters.
49
50
51## 21800004 Ad Display Failure
52
53**Error Message**
54
55Failed to display the ad.
56
57**Description**
58
59This error code is reported if displaying the ad fails.
60
61**Possible Causes**
62
63The network connection is abnormal.
64
65**Procedure**
66
67Check the network status.
68
69
70## 401 Incorrect Ads Request Parameter
71
72**Error Message**
73
74Invalid input parameter. Possible causes:1. Mandatory parameters are left unspecified.
752.Incorrect parameter types. 3.Parameter verification failed
76
77**Description**
78
79This error code is reported if an ads request parameter is incorrect.
80
81**Possible Causes**
82
83Ads request parameters fail the verification.
84
85**Procedure**
86
87Check whether the ads request parameters are correct.
88
89
90## 801 Ad Request Failure
91
92**Error Message**
93
94Device not support
95
96**Description**
97
98This error code is reported when the device supports the target SysCap but does not support a specific API.
99
100**Possible Causes**
101
102The device does not support the API.
103
104**Procedure**
105
106Check whether the device supports the API.
107