Minecraft crashes when opening a gui.

Started by SUSRADIST1 on

Topic category: Troubleshooting, bugs, and solutions

Joined Feb 2026
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Minecraft crashes when opening a gui.

I made a mod for Fabric 1.21.8. It just has a gui, a keybind for it and some basic procedures. When testing the mod in mcreator everything works fine, but when i export it into minecraft, the game freezes and then crashes as soon as try opening the gui. It then gives the following crash report: https://pastebin.com/K0bQQ57Q