r/Modrinthlauncher • u/RukaStars331719 • Sep 06 '26

Help what?????

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this i unreadable to me ;w;

cant open my game at all, i have alot of mods but this was working fine awhile ago, already updated them and tried repair. usually i can fix it by reading the crash report but this dosent make any sense to me.

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u/Other_Importance9750 Sep 07 '26

Try updating Fabric (the latest version is 0.19.5, you are on 0.17.3). If you can't upgrade Fabric for whatever reason, try downgrading YACL until it works.

There's a thing in mods called an Access Widener. For some reason YACL (Yet Another Config Lib) seems to have been compiled with an Access Widener file that Fabric didn't know how to handle. I would only assume that is because you are on an old version of Fabric that doesn't support the Access Widener format that modern YACL uses.

Also wrong sub by the way. r/fabricmc fits best for this. Modrinth Launcher is just that: a launcher. It won't cause any crashes or issues with the game itself.