Some weeks ago I played Minecraft 1.19.3 with forge 44.1.0,today I changed the version of forge to 44.1.8,and add optifine,then the game crashed.

I have tried any older versions of forge,but none of them worked.And I also tried reinstalling Minecraft 1.19.3 or optifine,but they also didn't work.Removing forge is working but I can't use mods so that I can't remove forge.Who knows the solution?Thanks!

😖

Here's the crash report:

---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 2023-02-05 16:59:24
Description: Rendering overlay

java.lang.NoClassDefFoundError: net/minecraftforge/common/extensions/IForgeModelBaker
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] {}
    at java.lang.ClassLoader.defineClass(ClassLoader.java:1012) ~[?:?] {}
    at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:119) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.lambda$findClass$15(ModuleClassLoader.java:219) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:229) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:219) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:135) ~[securejarhandler-2.1.6.jar:?] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] {}
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] {}
    at java.lang.ClassLoader.defineClass(ClassLoader.java:1012) ~[?:?] {}
    at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:119) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.lambda$findClass$15(ModuleClassLoader.java:219) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:229) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:219) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:135) ~[securejarhandler-2.1.6.jar:?] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] {}
    at net.minecraft.client.resources.model.ModelBakery.lambda$bakeModels$9(ModelBakery.java:209) ~[client-1.19.3-20221207.122022-srg.jar%23162!/:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
    at java.util.HashMap$KeySet.forEach(HashMap.java:1008) ~[?:?] {}
    at net.minecraft.client.resources.model.ModelBakery.m_245909_(ModelBakery.java:204) ~[client-1.19.3-20221207.122022-srg.jar%23162!/:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
    at net.minecraft.client.resources.model.ModelManager.m_245476_(ModelManager.java:166) ~[client-1.19.3-20221207.122022-srg.jar%23162!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.resources.model.ModelManager.m_246937_(ModelManager.java:89) ~[client-1.19.3-20221207.122022-srg.jar%23162!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:646) ~[?:?] {}
    at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) ~[?:?] {}
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) ~[?:?] {}
    at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[?:?] {}
    at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[?:?] {re:computing_frames}
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[?:?] {re:computing_frames}
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[?:?] {}
Caused by: java.lang.ClassNotFoundException: net.minecraftforge.common.extensions.IForgeModelBaker
    at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:141) ~[securejarhandler-2.1.6.jar:?] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] {}
    ... 28 more

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] {}
    at java.lang.ClassLoader.defineClass(ClassLoader.java:1012) ~[?:?] {}
    at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:119) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.lambda$findClass$15(ModuleClassLoader.java:219) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:229) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:219) ~[securejarhandler-2.1.6.jar:?] {}
    at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:135) ~[securejarhandler-2.1.6.jar:?] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] {}
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] {}
    at java.lang.ClassLoader.defineClass(ClassLoader.java:1012) ~[?:?] {}
-- Overlay render details --
Details:
    Overlay name: net.minecraft.client.gui.screens.LoadingOverlay
Stacktrace:
    at net.minecraft.client.renderer.GameRenderer.m_109093_(GameRenderer.java:1337) ~[client-1.19.3-20221207.122022-srg.jar%23162!/:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
    at net.minecraft.client.Minecraft.m_91383_(Minecraft.java:1135) ~[client-1.19.3-20221207.122022-srg.jar%23162!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:713) ~[client-1.19.3-20221207.122022-srg.jar%23162!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.m_239872_(Main.java:212) ~[1.19.3.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:51) ~[1.19.3.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
    at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
    at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$launchService$0(CommonClientLaunchHandler.java:27) ~[fmlloader-1.19.3-44.1.8.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {}

-- Last reload --
Details:
    Reload number: 1
    Reload reason: initial
    Finished: No
    Packs: vanilla
 

Remove OptiFine, it currently does not support Forge.