202: The user has created multiple channel instances of the same channel name.
5: The number of the RTM channels you are in exceeds the limit of 20.
1: Common failure. The user fails to join the channel.
3: The user fails to join the channel because the argument is invalid.
8: The frequency of joining the same channel exceeds two times every five seconds.
2: RESERVED FOR FUTURE USE
Note
Before v1.0.0, when you use the {@link RtmChannel.join()} method to join a channel that you have previously joined, the {@link RtmChannel.join()} method returns this error. For v1.0.0 and later, the {@link RtmChannel.join()} method returns the RtmChannel instance of the joined channel.7: The method call frequency exceeds 50 calls every three seconds.
4: A timeout occurs when joining the channel. The current timeout is set as five seconds. The current login timeout is set as six seconds. Possible reasons: The user is in the ABORTED or RECONNECTING state.
6: The user is joining or has joined the channel.