When ever I launch Quilt Loader version 0.26.3 or above with Quilted Fabric version [1.21] QFAPI 11.0.0-alpha.3 and QSL 10.0.0-alpha.1 it crashes with the message:
---- Crashed! ----
Date/Time: 2024/11/19 18:36:40.4681 [+0000]
Quilt Loader Version: 0.27.0

-- Crash --

org.quiltmc.loader.impl.FormattedException: java.lang.RuntimeException: Mixin transformation of net.minecraft.class_310 failed
at org.quiltmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:559)
at org.quiltmc.loader.impl.launch.knot.Knot.launch(Knot.java:84)
at org.quiltmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:28)
Caused by: java.lang.RuntimeException: Mixin transformation of net.minecraft.class_310 failed
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:504)
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:302)
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.loadClassOnly(KnotClassDelegate.java:190)
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:176)
at org.quiltmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:239)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
at net.minecraft.client.main.Main.main(Main.java:219)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.quiltmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:557)
... 2 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:499)
... 11 more
Caused by: org.spongepowered.asm.mixin.throwables.MixinApplyError: Mixin [#quilted_fabric_screen_api_v1:fabric-screen-api-v1.mixins.json:MinecraftClientMixin from mod quilted_fabric_screen_api_v1] from phase [DEFAULT] in config [#quilted_fabric_screen_api_v1:fabric-screen-api-v1.mixins.json] FAILED during APPLY
at org.spongepowered.asm.mixin.transformer.MixinProcessor.handleMixinError(MixinProcessor.java:638)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.handleMixinApplyError(MixinProcessor.java:589)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:379)
... 14 more
Caused by: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException: Critical injection failure: @Inject annotation on beforeScreenTick could not find any targets matching 'Lnet/minecraft/class_310;method_1572()V' in net/minecraft/class_310. Using refmap client-quilted_fabric_screen_api_v1-refmap.json [INJECT_PREPARE Applicator Phase -> #quilted_fabric_screen_api_v1:fabric-screen-api-v1.mixins.json:MinecraftClientMixin from mod quilted_fabric_screen_api_v1 -> Prepare Injections -> handler$zif000$quilted_fabric_screen_api_v1$beforeScreenTick(Lorg/spongepowered/asm/mixin/injection/callback/CallbackInfo;)V -> Parse -> -> Validate Targets]
at org.spongepowered.asm.mixin.injection.selectors.TargetSelectors.validate(TargetSelectors.java:346)
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.readAnnotation(InjectionInfo.java:369)
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.(InjectionInfo.java:340)
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.(InjectionInfo.java:331)
at org.spongepowered.asm.mixin.injection.struct.CallbackInjectionInfo.(CallbackInjectionInfo.java:48)
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo$InjectorEntry.create(InjectionInfo.java:196)
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.parse(InjectionInfo.java:664)
at org.spongepowered.asm.mixin.transformer.MixinTargetContext.prepareInjections(MixinTargetContext.java:1399)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.prepareInjections(MixinApplicatorStandard.java:731)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyMixin(MixinApplicatorStandard.java:315)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:246)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363)
... 14 more

-- Mods --

---- end of report ----

the minecraft launcher then has the exit code 1. I have no other mods installed.

Hey, I had this issue too but after looking around on the discord server, I found that this crash is caused by QFAPI not having any versions for anything higher than 1.21.1 yet. The only fix will be to wait for the newer versions of QFAPI to release.