Spreed: Starting gateway failed: Bridge nctalk.1 failed to join channel

[Happyfeet01]

Hello,

I would test the new Talk App. Create an Telegram Bot and copied the ID to the Bridge. I got this error at Matterbridge.

time="2020-10-04T19:55:48+02:00" level=fatal msg="Starting gateway failed: Bridge nctalk.1 failed to join channel: json: cannot unmarshal array into Go struct field RoomInfo.ocs.data.lastMessage of type ocs.TalkRoomMessageData" prefix=main

I added the Bot ID and the ID from the Chat. But would not connect.

Ubuntu 20.04.1 lts
Php 7.4.3
Nextcloud 20.0.0
Mysql

[nickvergessen]

Did you use the talk_matterbridge app or configure matterbridge yourself?

[Happyfeet01]

Talk_matterbridge

Mit der richtigen chatid dasselbe

time="2020-10-04T20:32:53+02:00" level=fatal msg="Starting gateway failed: Bridge nctalk.1 failed to join channel: json: cannot unmarshal array into Go struct field RoomInfo.ocs.data.lastMessage of type ocs.TalkRoomMessageData" prefix=main

[nickvergessen]

cc @gary-kim @eneiluj

[Happyfeet01]

The same message when I try to add discord

[eneiluj]

Maybe RoomInfo.ocs.data.lastMessage contains something that NCTalk Matterbridge backend is not expecting. Any clue @gary-kim?

@Happyfeet01 is the Talk room empty (no messages) when you enable the bridge?

[Happyfeet01]

@eneiluj yes is empty

[eneiluj]

Could you post messages in it and try to enable the bridge again?

[Happyfeet01]

New created

time="2020-10-05T13:06:40+02:00" level=info msg="Running version 1.18.3 8b26e42a" prefix=main time="2020-10-05T13:06:40+02:00" level=info msg="Parsing gateway myGateway" prefix=router time="2020-10-05T13:06:40+02:00" level=info msg="Starting bridge: telegram.0 " prefix=router time="2020-10-05T13:06:40+02:00" level=info msg=Connecting prefix=telegram time="2020-10-05T13:06:40+02:00" level=info msg="Connection succeeded" prefix=telegram time="2020-10-05T13:06:40+02:00" level=info msg="telegram.0: joining (ID: telegram.0)" prefix=telegram time="2020-10-05T13:06:40+02:00" level=info msg="Starting bridge: nctalk.1 " prefix=router time="2020-10-05T13:06:40+02:00" level=info msg=Connecting prefix=nctalk time="2020-10-05T13:06:40+02:00" level=info msg=Connected prefix=nctalk time="2020-10-05T13:06:40+02:00" level=info msg="nctalk.1: joining jcojm63y (ID: jcojm63ynctalk.1)" prefix=nctalk time="2020-10-05T13:06:41+02:00" level=fatal msg="Starting gateway failed: Bridge nctalk.1 failed to join channel: json: cannot unmarshal array into Go struct field RoomInfo.ocs.data.lastMessage of type ocs.TalkRoomMessageData" prefix=main

[eneiluj]

According to your screenshot you enabled the bridge before posting a message inside. Could you disable the bridge and reenable it so that there is an existing message when it tries connecting to Talk?

[Happyfeet01]

I tried it, but no luck

[eneiluj]

Then let's wait for @gary-kim 's expertise :smile:.

[gary-kim]

From the error message, it seems like the issue is that the rooms endpoint is expected to return a lastMessage response but the documentation does say that it is possible for it to be empty if no message was sent before in the room. That will need a fix upstream. Otherwise, it should work when restarted with at least one message sent already so I'm not sure why that's not working.

https://github.com/gary-kim/go-nc-talk/issues/27

https://github.com/gary-kim/go-nc-talk/blob/af034cd7167c9af90c52ad3ff7081bd7b1fe21ac/user/user.go#L114

[Happyfeet01]

Okay I will start the Bridge again and join the Bot to existing chat with messages. And post the log entry again.

[gary-kim]

I'm trying to recreate this but I don't seem to be able to find a situation in which lastMessage is not set. Just creating a conversation is a message in and of itself.

Will still fix it but it is a bit confusing.

[nickvergessen]

Create a conversation and execute a command that is not visible to everyone.