Tengo el mismo problema que pokeplayzgaming. Aqui os dejo mi crash report
---- Minecraft Crash Report ----
// You're mean.
Time: 3/09/20 10:42
Description: Initializing game
java.lang.ClassCastException: net.minecraftforge.fml.ModLoadingStage$$Lambda$3285/26448531 cannot be cast to net.minecraftforge.fml.ModLoadingStage$EventGenerator
at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) ~[?:1.8.0_261] {}
at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Unknown Source) ~[?:1.8.0_261] {}
at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[?:1.8.0_261] {}
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) ~[?:1.8.0_261] {}
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source) ~[?:1.8.0_261] {}
at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[?:1.8.0_261] {}
at java.util.stream.ReferencePipeline.reduce(Unknown Source) ~[?:1.8.0_261] {}
at net.minecraftforge.fml.ModLoadingStage.buildTransition(ModLoadingStage.java:104) ~[?:?] {re:classloading}
at net.minecraftforge.fml.ModLoadingStage.buildTransition(ModLoadingStage.java:96) ~[?:?] {re:classloading}
at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:234) ~[?:?] {re:classloading}
at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:196) ~[?:?] {re:classloading}
at net.minecraftforge.fml.client.ClientModLoader.lambda$begin$1(ClientModLoader.java:120) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$4(ClientModLoader.java:140) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:120) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.<init>(Minecraft.java:424) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:149) ~[1.16.2-forge-33.0.35.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_261] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_261] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_261] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_261] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[forge-1.16.2-33.0.35.jar:33.0] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-6.1.1.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-6.1.1.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-6.1.1.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-6.1.1.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-6.1.1.jar:?] {}
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Render thread
Stacktrace:
at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Unknown Source)
at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source)
at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
at java.util.stream.ReferencePipeline.reduce(Unknown Source)
at net.minecraftforge.fml.ModLoadingStage.buildTransition(ModLoadingStage.java:104)
at net.minecraftforge.fml.ModLoadingStage.buildTransition(ModLoadingStage.java:96)
at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:234)
at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:196)
at net.minecraftforge.fml.client.ClientModLoader.lambda$begin$1(ClientModLoader.java:120)
at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$4(ClientModLoader.java:140)
at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:120)
at net.minecraft.client.Minecraft.<init>(Minecraft.java:424)
-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.main.Main.main(Main.java:149)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51)
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
-- System Details --
Details:
Minecraft Version: 1.16.2
Minecraft Version ID: 1.16.2
Operating System: Windows 10 (x86) version 10.0
Java Version: 1.8.0_261, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 147803752 bytes (140 MB) / 342769664 bytes (326 MB) up to 523501568 bytes (499 MB)
CPUs: 2
JVM Flags: 7 total; -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M
ModLauncher: 6.1.1+74+master.966c698
ModLauncher launch target: fmlclient
ModLauncher naming: srg
ModLauncher services:
/mixin-0.8.jar mixin PLUGINSERVICE
/eventbus-3.0.3-service.jar eventbus PLUGINSERVICE
/forge-1.16.2-33.0.35.jar object_holder_definalize PLUGINSERVICE
/forge-1.16.2-33.0.35.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-2.2.0-shadowed.jar accesstransformer PLUGINSERVICE
/forge-1.16.2-33.0.35.jar capability_inject_definalize PLUGINSERVICE
/forge-1.16.2-33.0.35.jar runtimedistcleaner PLUGINSERVICE
/mixin-0.8.jar mixin TRANSFORMATIONSERVICE
/OptiFine_1.16.2_HD_U_G3.jar OptiFine TRANSFORMATIONSERVICE
/forge-1.16.2-33.0.35.jar fml TRANSFORMATIONSERVICE
FML: 33.0
Forge: net.minecraftforge:33.0.35
FML Language Providers:
javafml@33.0
minecraft@1
Mod List:
forge-1.16.2-33.0.35-client.jar Minecraft {minecraft@1.16.2 CREATE_REGISTRIES}
useful_backpacks-1.16.2-1.11.3.76.jar Useful Backpacks {usefulbackpacks@1.11.3.76 CREATE_REGISTRIES}
elevatorid-1.16.2-1.7.4.jar Elevator Mod {elevatorid@1.16.2-1.7.4 CREATE_REGISTRIES}
forgemod_VoxelMap-1.10.10_for_1.16.2.jar VoxelMap {voxelmap@1.10.10 CREATE_REGISTRIES}
forge-1.16.2-33.0.35-universal.jar Forge {forge@33.0.35 CREATE_REGISTRIES}
reap-1.16.2-1.0.1.jar Reap Mod {reap@1.16.2-1.0.1 CREATE_REGISTRIES}
u_team_core-1.16.2-3.1.6.177.jar U Team Core {uteamcore@3.1.6.177 CREATE_REGISTRIES}
simpleplanes-1.16.2-2.0.5.3.jar Simple Planes {simpleplanes@1.16.2-2.0.5.3 CREATE_REGISTRIES}
gravestone-1.16.2-1.0.5.jar Gravestone Mod {gravestone@1.16.2-1.0.5 CREATE_REGISTRIES}
Hwyla-forge-1.10.11-B78_1.16.2.jar Waila {waila@1.10.11-B78_1.16.2 CREATE_REGISTRIES}
jei-1.16.2-7.1.3.20.jar Just Enough Items {jei@7.1.3.20 CREATE_REGISTRIES}
Launched Version: 1.16.2-forge-33.0.35
Backend library: LWJGL version 3.2.2 build 10
Backend API: GeForce 8600 GT/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'forge'
Type: Client (map_client.txt)
CPU: 2x Intel(R) Core(TM)2 Duo CPU E8200 @ 2.66GHz
OptiFine Version: OptiFine_1.16.2_HD_U_G3
OptiFine Build: 20200829-104659
Render Distance Chunks: 8
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: null
OpenGlVersion: 3.3.0
OpenGlRenderer: GeForce 8600 GT/PCIe/SSE2
OpenGlVendor: NVIDIA Corporation
CpuCount: 2