Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: kotlin.Pair
	at org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformSingleDescriptor(MixinTargetContext.java:1001) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformSingleDescriptor(MixinTargetContext.java:961) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformMethodDescriptor(MixinTargetContext.java:1016) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformDescriptor(MixinTargetContext.java:917) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attachUniqueMethod(MixinPreProcessorStandard.java:518) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attachMethods(MixinPreProcessorStandard.java:351) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:299) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:277) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1289) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:294) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:421) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:403) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.12.5+mixin.0.8.5.jar:0.12.5+mixin.0.8.5]
	at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:422) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:112) ~[fabric-loader-0.14.21.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
	at vazkii.patchouli.client.handler.BookCrashHandler.appendToCrashReport(BookCrashHandler.java:23) ~[Patchouli-1.20.1-81-FABRIC.jar:?]
	at net.minecraft.util.SystemDetails.handler$zzd000$patchouli$addContext(SystemDetails.java:516) ~[minecraft-project-@-merged-named.jar:?]
	at net.minecraft.util.SystemDetails.<init>(SystemDetails.java:58) ~[minecraft-project-@-merged-named.jar:?]
	at net.minecraft.util.crash.CrashReport.<init>(CrashReport.java:34) ~[minecraft-project-@-merged-named.jar:?]
	at net.minecraft.util.crash.CrashReport.initCrashReport(CrashReport.java:274) ~[minecraft-project-@-merged-named.jar:?]
	at net.minecraft.client.main.Main.main(Main.java:164) ~[minecraft-project-@-merged-named.jar:?]
	at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:468) ~[fabric-loader-0.14.21.jar:?]
	... 3 more