MultiMC version:0.6.5-1217
Operating System: ubuntu 19.04 disco dingo
Summary of the issue or suggestion:
I cannot connect to any Mojang networks, disabling multiplayer and many other features such as connectin to my account.
I log in normally and start playing Minecraft with friends.
1.download multimc
2.try to log in
3.

cannot connect to the networks.

I have qt5 installed already.
I am also connected to the internet.
I have already tried deleting and reinstalling java.
This solved it for me
https://github.com/MultiMC/MultiMC5/issues/1784#issuecomment-272712807
Everything is ok for me, you need to have an internet connection that is why, it is all fine on Windows 10 v1903

"Everything is ok for me, you need to have an internet connection that is why, it is all fine on Windows 10 v1903"
Thats incorrect. The problem are the non MultiMC Libs. Ubuntu 19.04 and some other distros cant handle them.
do you know of a fix for this @Zetabite ?
@tjsd the same fix @drazisil suggested
I removed the QT5 libs and the plugins dir, but then multimc wont launch because they are missing
Install QT5 via sudo apt-get install qt5-default
I already have qt5 installed
I already have qt5 installed
Good, now delete everything without multimc in the name from ~/.local/share/multimc/bin (or whereever your local multimc copy is)
THANK YOU! that fixed it and now I think it works pretty well!