The newest version for 1.21 gives this error when launching.
Incompatible mods found!
net.fabricmc.loader.impl.FormattedException: Some of your mods are incompatible with the game or each other!
A potential solution has been determined, this may resolve your problem:
Replace mod 'QuickBuild' (quickbuild) v0.4.3+1.21.1 with any version that is compatible with:
minecraft 1.21
More details:
Mod 'QuickBuild' (quickbuild) v0.4.3+1.21.1 requires version 1.21.1 of 'Minecraft' (minecraft), but only the wrong version is present: 1.21!
at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:51)
at net.fabricmc.loader.impl.FabricLoaderImpl.load(FabricLoaderImpl.java:196)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:146)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
The newest version for 1.21 gives this error when launching. Incompatible mods found! net.fabricmc.loader.impl.FormattedException: Some of your mods are incompatible with the game or each other! A potential solution has been determined, this may resolve your problem: