How to start WebRTC?

hi, @amy.blais
I still do not have progress in the video call, even with the new version of Mattermost.

Mattermost version:

{“level”:“info”,“ts”:1529309168.0687737,“caller”:“commands/server.go:81”,“msg”:“Current version is 5.0.0 (5.0.0-rc1/Tue Jun 5 21:38:10 UTC 2018/ffb1d5d8e3a40c007b8faa152ddc3ae281f2a63a/none)”}

WebRTC version:

root@7a0aec31498f:/janus-gateway# /opt/janus/bin/janus -V
Janus commit: 7a42432c2683879e124f3f99251fb21d8cc37a4e
Compiled on: Thu Nov 30 15:37:15 UTC 2017
janus 0.2.6

some other issue in mattermost log:

------------------------------------ ERROR ------------------------------------------------
The platform binary has been deprecated, please switch to using the new mattermost binary.
The platform binary will be removed in a future version.