If you’ve stumbled upon the error or launcher output string:
Endless creativity, now fully portable — with some technical caveats. Minecraft -0100D71004694800- -v7602176- -EE. UU...
Happy crafting, and remember: when in doubt, erase .minecraft (after backing up your saves!) and start fresh. If you’ve stumbled upon the error or launcher
If the launcher attempts to parse a config line like: minecraft --uuid 0100d710-0469-4800-... --version 7602176 --locale es_US and a crash (or mangled output) merges the arguments without spaces, you’d see: Minecraft -0100D71004694800- -v7602176- -EE. US and remember: when in doubt