Moderator Note
This issue is caused by Optifine.
If you are using the beta version of the Minecraft launcher, and when you launch OptiFine it crashes, Here is the fix: https://streamable.com/zliaut.
The reason why this bug is happening is that OptiFine is looking for a minimum version of the launcher (2.2.1) The beta version is 2.2.2.
When trying to launch optifine, the game crashes immediately and i get this error: Exit code 0. This hasn't happened before with the previous launcher versions (before Feb 24th 2021), but when I tried today (Feb 24th 2021) it just doesn't work. When i use the normal (unmodded) version of minecraft, the game launches as normal.
Linked issues
is duplicated by 10
MC-217027
Error code 0/1
Resolved
MCL-17040
Crashes instantly trying to launch an optifine game
Resolved
MCL-17043
Launcher crashes when trying to use optifine
Resolved
MCL-17051
when i start my minecraft,it will keep stuck and never jump out of the minecraft game
Resolved
MCL-17064
Some modded versions crash the launcher when trying to start
Resolved
Attachments
Comments 4
If you're on a mac, go to settings in the launcher and uncheck use beta launcher. Restart the launcher and it should be able to run.
Thanks Henry for providing some assistance here.
Mojang does not develop OptiFine so we can't fix this bug. Either follow Henry's fix and/or report this to OptiFine developers.
Thank you, it worked.