Loading Avalonia controls causes crash in Linux

[RoboMico]

Description

I was having trouble trying to run the demo project in Linux environment. It works fine in Windows though.

I attempted some basic troubleshooting and located that this line seemed to have caused the issue:

Estragonia/samples/HelloWorld/UserInterface.cs

Line 11 in 0aa8074

Control = new HelloWorldView();

My assumption is that the Avalonia UserControl failed to load. However there was no output in the console or the editor, which is quite confusing.

Steps to reproduce

1. Boot into a Linux OS environment with the latest version of Godot 4.3 Mono and .NET SDK 8 installed
2. Clone the repo and open samples/HelloWorld/project.godot
3. Run the game
4. The godot splash screen shows, but the window then immediately closes. Nothing is output to the console or the Output tab in the editor.

Environment details

• OS: Arch Linux (fully updated on 2025/2/11)
• Godot: 4.3 Mono
• .NET SDK: 8.0.112 (the global.json requires 8.0.404 so I manually edited it, otherwise the SDK refused to build it)
• Graphics card: NVIDIA MX150 (driver: nvidia-dkms 570.86.16-2)
• Kernal: 6.13.2.zen1-1