Possible Unhandled Promise Rejection Android

Android
1

Hello! I’m new in webrtrc. I try to make a text messanger by webrtc. It seems everything goes well, but i get this errors:

Possible Unhandled Promise Rejection (id: 20):
TypeError: `sdpMLineIndex` and `sdpMid` must not null
TypeError: `sdpMLineIndex` and `sdpMid` must not null

and

Possible Unhandled Promise Rejection (id: 21):
Error: Failed to set local answer sdp: Called in wrong state: stable
Error: Failed to set local answer sdp: Called in wrong state: stable

The problem is that is have sdpMLineIndex and sdpMid not null:
candidate:

candidate: {
    candidate: 'candidate:3313900500 1 udp 2122056191 fec0::31f2:2509:baf9:ebb1 42098 typ host generation 0 ufrag PXQq network-id 2 network-cost 900',
    sdpMLineIndex: 0,
    sdpMid: '0'
}

Also i’d appriciate if someone will tell how to start webrtc logs on Android

Also my code: GitHub - Xepobopa/chat-webrtc