This is driving me crazy. I’m trying to run BG3 and I’m running into a variety of errors:

My step up:

OS: Ubuntu 22.04.3 LTSKERNEL: 6.2.0-26-generic CPU: AMD Ryzen 9 7950X3D 16-Core GPU: AMD Radeon RX 7900 XTX (gfx1100, LLVM 15.0.7, DRM 3.49, 6.2.0-26-generic) GPU DRIVER: 4.6 Mesa 23.3git2308230600.fbf3f6oibaf~j (git-fbf3f64 2023-08-23 jammy-oi RAM: 63 GB

One seems to be this for which I feel I’ve tried every googable solution:

You must install .NET to run this application.

App: Z:\home\peafield.local\share\Steam\steamapps\common\Baldurs Gate 3\Launche r\LariLauncher.exe Architecture: x64 App host version: 6.0.18 .NET location: Not found

Learn about runtime installation: https://aka.ms/dotnet/app-launch-failed

Another is this:

ERROR: ld.so: object ‘/home/peafield/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.

But I’m not even sure what this points to now.

Can anyone help? Or is anyone going through something similar with a similar set up?

EDIT: The solution, as many of you suggested, was to just change distros. I’d heard good things about Fedora so I tried it and everything ran first time with no tweaking! Thank you everyone for the advice.

    • Sounds like Steam and Proton may be broken. do sudo apt purge steam and then delete all your Proton prefixes in I think its ~/.steam/steam/steamapps/compatdata (the folders will all be game ID numbers) then reinstall Steam and try again. I’m running the game with the launcher on Pop!_OS 22.04 which is Ubuntu based and have no problems. However I set in the launcher to use Vulkan instead of DirectX

    • 99% of the time, that means SteamOS is getting sleeby and needs a reboot. (Some component of wine or something is not very good at cleaning up itself. You could try to chase it down, but trust me just rebooting is easier. Welcome to Linux.)