0: No error.

1: General error (no classified reason).

2: Invalid parameter called. For example, the specific channel name includes illegal characters.

3: The SDK module is not ready. Agora recommends the following methods to solve this error:

• Check the audio device.
• Check the completeness of the App.
• Re-initialize the SDK.

4: The SDK does not support this function.

5: The request is rejected. This is for internal SDK internal use only, and is not returned to the app through any method or callback.

6: The buffer size is not big enough to store the returned data.

7: The SDK is not initialized before calling this method.

8: The specified view is invalid. You need to specify a view when using the video function.

9: No permission. This is for internal SDK internal use only, and is not returned to the app through any method or callback.

10: An API timeout. Some APIs require the SDK to return the execution result, and this error occurs if the request takes too long for the SDK to process.

11: The request is cancelled. This is for internal SDK internal use only, and is not returned to the app through any method or callback.

12: The call frequency is too high. This is for internal SDK internal use only, and is not returned to the app through any method or callback.

13: The SDK failed to bind to the network socket. This is for internal SDK internal use only, and is not returned to the app through any method or callback.

14: The network is unavailable. This is for internal SDK internal use only, and is not returned to the app through any method or callback.

15: No network buffers available. This is for internal SDK internal use only, and is not returned to the app through any method or callback.

16: Failed to initialize the video function, possibly caused by lack of resources. The users cannot see the video while the voice communication is not affected.

17: The request to join the channel is rejected. This error usually occurs when:

• The user is already in the channel, and still calls the API to join the channel, for example, joinChannel.
• The user tries to join the channel during echo test. Wait until the echo test is finished.

18: The request to leave the channel is rejected. This error usually occurs:

• When the user left the channel and still calls the API to leave the channel, for example, leaveChannel. This error stops once the user stops calling the method.
• When the user calls leaveChannel before joining the channel. No extra operation is needed.

101: The specified App ID is invalid. Please try to rejoin the channel with a valid App ID.

102: The specified channel name is invalid. Please try to rejoin the channel with a valid channel name.

109: The token expired due to one of the following reasons:

• Authorized Timestamp expired: The timestamp is represented by the number of seconds elapsed since 1/1/1970. The user can use the Token to access the Agora service within five minutes after the Token is generated. If the user does not access the Agora service after five minutes, this Token will no longer be valid.
• Call Expiration Timestamp expired: The timestamp is the exact time when a user can no longer use the Agora service (for example, when a user is forced to leave an ongoing call). When a value is set for the Call Expiration Timestamp, it does not mean that the Dynamic Key will expire, but that the user will be banned from the channel.

110: The Token is invalid due to one of the following reasons:

• The App Certificate for the project is enabled in Dashboard, but the user is still using the App ID.
• Once the App Certificate is enabled, the user must use a Token. The uid field is mandatory, and users must set the same uid as the one set in joinChannel.

111: The internet connection is interrupted. This applies to the Agora Web SDK only.

112: The internet connection is lost. This applies to the Agora Web SDK only.

113: The user is not in the channel when calling the sendStreamMessage method.

114: The size of the sent data is over 1024 bytes when the user calls the sendStreamMessage method.

115: The bitrate of the sent data exceeds the limit of 6 Kbps when the user calls the sendStreamMessage method.

116: Too many data streams (over 5 streams) are created when the user calls the createDataStream} method.

120: Decryption failed. The user may have used a different encryption password to join the channel. Please check your settings or try rejoining the channel.

123: The client is banned by the server.

1001: Failed to load the media engine.

1002: Failed to start the call after enabling the media engine.

1003: Failed to start the camera.

1004: Failed to start the video rendering module.

1005: Audio Device Module: General error on the Audio Device Module (no classified reason). Please check if the audio device is occupied by other applications, or try joining the channel.

1006: Audio Device Module: Error in using the Java resources.

1007: Audio Device Module: Error in setting the sampling frequency.

1008: Audio Device Module: Error in initializing the playback device.

1009: Audio Device Module: Error in starting the playback device.

1010: Audio Device Module: Error in stopping the playback device.

1011: Audio Device Module: Error in initializing the recording device.

1012: Audio Device Module: Error in starting the recording device.

1013: Audio Device Module: Error in stopping the recording device.

1015: Audio Device Module: Runtime playback error.

1017: Audio Device Module: Runtime recording error.

1018: Audio Device Module: Failed to record.

1022: Audio Device Module: Error in initializing the loopback device.

1023: Audio Device Module: Error in starting the loopback device.

1501: Video Device Module: The camera is not authorized.