When installing on Ubuntu 24.04 server, appimage doesn't launch.

[smhanov]

(base) smhanov@megos:~/Applications$ ./Transformer-Lab-0.6.1_5e99536bedd26661b13e868ed1b86bca.AppImage
[523892:1106/191201.202261:FATAL:setuid_sandbox_host.cc(158)] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /tmp/.mount_TransfJ4qEua/chrome-sandbox is owned by root and has mode 4755.

I need to start it with the --no-sandbox option and then it works:

./Transformer-Lab-0.6.1_5e99536bedd26661b13e868ed1b86bca.AppImage --no-sandbox

[Kostis-S-Z]

Facing the same. It seems to be an issue with all electron based apps, which apparently is due to the apparmor package.

Current fix is either the --no-sandbox flag or running sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0 (however I dont know the implications of this command).

But it seems that the next version of Electron will fix this issue? I would suggest to the developers to keep an eye to update to the newest electron when it comes out, or add this as a FAQ somewhere.

[aliasaria]

Thanks for finding that mention about Electron @Kostis-S-Z I will keep an eye out for the next v26 build. It looks like they publish builds every month https://www.npmjs.com/package/electron-builder?activeTab=versions