Android API 常见错误码
在 Android SDK 中异常机制通过错误码来判断具体错误，可以根据具体错误码查阅错误原因。
Android 中错误码的类为 EMError。
如：注册时用户返回已存在的错误可以这样检测：EMError.USER_ALREADY_EXISTS
具体详情见V3.X Java Doc。
| 错误码 | 描述 |
|---|---|
| 0 | EM_NO_ERROR |
| 1 | GENERAL_ERROR |
| 2 | NETWORK_ERROR |
| 4 | EXCEED_SERVICE_LIMIT |
| 5 | SERVICE_ARREARAGES |
| 100 | INVALID_APP_KEY |
| 101 | INVALID_USER_NAME |
| 102 | INVALID_PASSWORD |
| 103 | INVALID_URL |
| 104 | INVALID_TOKEN |
| 200 | USER_ALREADY_LOGIN |
| 201 | USER_NOT_LOGIN |
| 202 | USER_AUTHENTICATION_FAILED |
| 203 | USER_ALREADY_EXIST |
| 204 | USER_NOT_FOUND |
| 205 | USER_ILLEGAL_ARGUMENT |
| 206 | USER_LOGIN_ANOTHER_DEVICE |
| 207 | USER_REMOVED |
| 208 | USER_REG_FAILED |
| 209 | USER_UPDATEINFO_FAILED |
| 210 | USER_PERMISSION_DENIED |
| 211 | USER_BINDDEVICETOKEN_FAILED |
| 212 | USER_UNBIND_DEVICETOKEN_FAILED |
| 213 | USER_BIND_ANOTHER_DEVICE |
| 214 | USER_LOGIN_TOO_MANY_DEVICES |
| 215 | USER_MUTED |
| 216 | USER_KICKED_BY_CHANGE_PASSWORD |
| 217 | USER_KICKED_BY_OTHER_DEVICE |
| 300 | SERVER_NOT_REACHABLE |
| 301 | SERVER_TIMEOUT |
| 302 | SERVER_BUSY |
| 303 | SERVER_UNKNOWN_ERROR |
| 304 | SERVER_GET_DNSLIST_FAILED |
| 305 | SERVER_SERVICE_RESTRICTED |
| 400 | FILE_NOT_FOUND |
| 401 | FILE_INVALID |
| 402 | FILE_UPLOAD_FAILED |
| 403 | FILE_DOWNLOAD_FAILED |
| 404 | FILE_DELETE_FAILED |
| 405 | FILE_TOO_LARGE |
| 500 | MESSAGE_INVALID |
| 501 | MESSAGE_INCLUDE_ILLEGAL_CONTENT |
| 502 | MESSAGE_SEND_TRAFFIC_LIMIT |
| 503 | MESSAGE_ENCRYPTION_ERROR |
| 504 | MESSAGE_RECALL_TIME_LIMIT |
| 505 | SERVICE_NOT_ENABLED |
| 506 | MESSAGE_EXPIRED |
| 507 | MESSAGE_ILLEGAL_WHITELIST |
| 600 | GROUP_INVALID_ID |
| 601 | GROUP_ALREADY_JOINED |
| 602 | GROUP_NOT_JOINED |
| 603 | GROUP_PERMISSION_DENIED |
| 604 | GROUP_MEMBERS_FULL |
| 605 | GROUP_NOT_EXIST |
| 700 | CHATROOM_INVALID_ID |
| 701 | CHATROOM_ALREADY_JOINED |
| 702 | CHATROOM_NOT_JOINED |
| 703 | CHATROOM_PERMISSION_DENIED |
| 704 | CHATROOM_MEMBERS_FULL |
| 705 | CHATROOM_NOT_EXIST |
| 800 | CALL_INVALID_ID |
| 801 | CALL_BUSY |
| 802 | CALL_REMOTE_OFFLINE |
| 803 | CALL_CONNECTION_ERROR |
| 804 | CALL_CONFERENCE_CREATE_FAILED |
| 805 | CALL_CONFERENCE_CANCEL |
| 806 | CALL_ALREADY_JOIN |
| 807 | CALL_ALREADY_PUB |
| 808 | CALL_ALREADY_SUB |
| 809 | CALL_NO_SESSION |
| 810 | CALL_NO_PUBLISH |
| 811 | CALL_NO_SUBSCRIBE |
| 812 | CALL_NO_STREAM |
| 813 | CALL_TICKET_INVALID |
| 814 | CALL_TICKET_EXPIRED |
| 815 | CALL_SESSION_EXPIRED |
| 816 | CALL_CONFERENCE_NO_EXIST |
| 817 | CALL_INVALID_CAMERA_INDEX |
| 818 | CALL_INVALID_PARAMS |
| 819 | CALL_CONNECTION_TIMEOUT |
| 820 | CALL_JOIN_TIMEOUT |
| 821 | CALL_OTHER_DEVICE |
| 822 | CALL_CONFERENCE_DISMISS |
| 823 | CALL_TALKER_ISFULL |
| 900 | PUSH_NOT_SUPPORT |
| 901 | PUSH_BIND_FAILED |
| 902 | PUSH_UNBIND_FAILED |
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