gui wont let me launch client

Issue description

So i sent this file to my friend with the same version of mcreator, and it worked perfectly fine for him, so im wondering how would i make this work for me? im having a problem whenever i create a gui. im fairly new to this so sorry if i leave something out. i cant launch my game even tho it should be working, you probably dont even need to download the zip, just i need a way to stop this message from popping up and not launching my game. its really annoying cuz i have so many ideas that include a gui but it wont let me. also ive regenerated my code and followed videos step by step but nothings working.

Attachment Size
guiTestProblem.zip15.01 KB 15.01 KB
Snip.PNG63.98 KB 63.98 KB

Issue comments

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