java.lang.NoClassDefFoundError: net/fabricmc/tinyremapper/IMappingProvider
at me.modmuss50.optifabric.mod.OptifabricSetup.run(OptifabricSetup.java:46)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at com.chocohead.mm.Plugin.getMixins(Plugin.java:340)
at org.spongepowered.asm.mixin.transformer.PluginHandle.getMixins(PluginHandle.java:128)
at org.spongepowered.asm.mixin.transformer.MixinConfig.postInitialise(MixinConfig.java:796)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.prepareConfigs(MixinProcessor.java:568)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.select(MixinProcessor.java:462)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.checkSelect(MixinProcessor.java:438)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:290)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:422)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:467)
at net.fabricmc.loader.impl.util.DefaultLanguageAdapter.create(DefaultLanguageAdapter.java:50)
at net.fabricmc.loader.impl.entrypoint.EntrypointStorage$NewEntry.getOrCreate(EntrypointStorage.java:117)
at net.fabricmc.loader.impl.entrypoint.EntrypointContainerImpl.getEntrypoint(EntrypointContainerImpl.java:53)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:384)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:160)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
Caused by: java.lang.ClassNotFoundException: net.fabricmc.tinyremapper.IMappingProvider
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:226)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
... 25 more

optifine version OptiFine HD U H9 1.18.2

Tried using Fabric Loader 0.14.25, not working

If you downloaded and installed Fabric Loader 0.14.25 AND changed the play profile to THAT version then it does work. So double check that the correct version was installed and that your play profile is set to that version of the loader.

fresh install of 0.14.25 fabric worked

[03/04/2024 16:36:39 PM] [Render thread/ERROR] Mixin apply for mod fabric-rendering-v1 failed fabric-rendering-v1.mixins.json:shader.ShaderMixin from mod fabric-rendering-v1 -> net.minecraft.class_5944: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException @ModifyArg handler before this() invocation must be static in injector net/minecraft/class_5944::modifyProgramId [INJECT Applicator Phase -> fabric-rendering-v1.mixins.json:shader.ShaderMixin from mod fabric-rendering-v1 -> Apply Injections -> -> Inject -> fabric-rendering-v1.mixins.json:shader.ShaderMixin from mod fabric-rendering-v1->@ModifyArg:

[03/04/2024 16:36:40 PM] java.lang.RuntimeException: Could not execute entrypoint stage 'client' due to errors, provided by 'fabric-renderer-indigo'!
[03/04/2024 16:36:40 PM] at net.fabricmc.loader.impl.FabricLoaderImpl.lambda$invokeEntrypoints$2(FabricLoaderImpl.java:387)
[03/04/2024 16:36:40 PM] at net.fabricmc.loader.impl.util.ExceptionUtil.gatherExceptions(ExceptionUtil.java:33)

[03/04/2024 16:36:40 PM] Caused by: java.lang.BootstrapMethodError: java.lang.RuntimeException: Mixin transformation of net.minecraft.class_5944 failed

[03/04/2024 16:36:40 PM] Caused by: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException: @ModifyArg handler before this() invocation must be static in injector net/minecraft/class_5944::modifyProgramId [INJECT Applicator Phase -> fabric-rendering-v1.mixins.json:shader.ShaderMixin from mod fabric-rendering-v1 -> Apply Injections -> -> Inject -> fabric-rendering-v1.mixins.json:shader.ShaderMixin from

minecraft no longer opening when Fabric API is installed

Fabric loader 0.14.25, so what are the other mods you are using and their respective versions?

Just optifine, optifabric and the version of fabric API it downloads when I clicked the button saying "you need to install the fabric API to use mods"

For 1.18.2 try using Fabric Loader 0.14.25, Fabric API 0.51.1, Optifabric 1.14.3, and Optifine 1.18.2 H7 and see if it loads. If it does load at that point then try it with Optifine H9.

Just FAPI 0.76.0 is enough.

FAPI 0.77.0 made changes to core shader support in the FRAPI which OptiFabric does not yet support.

used FAPI 0.76.0, now is working