My Fabric version is 0.14.12, and uses OptiFine_ 1.14.4_ HD_ U_ G5.

Error Reporting:
Uncaught exception in thread "main"
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at oolloo.jlw.Wrapper.invokeMain(Wrapper.java:58)
at oolloo.jlw.Wrapper.main(Wrapper.java:51)
Caused by: java.lang.RuntimeException: Mixin transformation of net.minecraft.client.main.Main failed
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:427)
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:112)
at java.lang.ClassLoader.loadClass(Unknown Source)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:454)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
... 6 more
Caused by: java.lang.NoSuchMethodError: net.fabricmc.loader.api.metadata.ModMetadata.getCustomElement(Ljava/lang/String;)Lcom/google/gson/JsonElement;
at com.chocohead.mm.Plugin.getMixins(Plugin.java:287)
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)
... 13 more

Please do not use the old optifabric with the latest fabric loader.
Community port: https://modrinth.com/mod/optifabric-origins

Please do not use the old optifabric with the latest fabric loader. Community port: https://modrinth.com/mod/optifabric-origins

It works, Thank you very much!!