MultiMC version: 0.7.0-4229 Launched instance in online mode sessionserver.mojang.com resolves to: [2620:1ec:bdf::40, 13.107.246.40] textures.minecraft.net resolves to: [2620:1ec:bdf::40, 13.107.246.40] api.minecraftservices.com resolves to: [2620:1ec:bdf::40, 13.107.246.40] Minecraft folder is: /Applications/MultiMC.app/Data/instances/Official Crafting Dead CD_1.3.5_PATCH/.minecraft Java path is: /Library/Java/JavaVirtualMachines/temurin-21.jdk/Contents/Home/bin/java Checking Java version... Java is version 21.0.7, using amd64 architecture, from Eclipse Adoptium. Main Class: net.minecraft.launchwrapper.Launch Native path: /Applications/MultiMC.app/Data/instances/Official Crafting Dead CD_1.3.5_PATCH/natives Libraries: /Applications/MultiMC.app/Data/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar /Applications/MultiMC.app/Data/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar /Applications/MultiMC.app/Data/libraries/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.jar /Applications/MultiMC.app/Data/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.4-nightly-20150209/lwjgl_util-2.9.4-nightly-20150209.jar /Applications/MultiMC.app/Data/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar /Applications/MultiMC.app/Data/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar /Applications/MultiMC.app/Data/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar /Applications/MultiMC.app/Data/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar /Applications/MultiMC.app/Data/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar /Applications/MultiMC.app/Data/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar /Applications/MultiMC.app/Data/libraries/argo/argo/2.25_fixed/argo-2.25_fixed.jar /Applications/MultiMC.app/Data/libraries/org/bouncycastle/bcprov-jdk15on/1.47/bcprov-jdk15on-1.47.jar /Applications/MultiMC.app/Data/libraries/com/google/guava/guava/14.0/guava-14.0.jar /Applications/MultiMC.app/Data/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar /Applications/MultiMC.app/Data/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar /Applications/MultiMC.app/Data/libraries/com/google/code/gson/gson/2.2.2/gson-2.2.2.jar /Applications/MultiMC.app/Data/libraries/net/minecraftforge/forge/1.6.4-9.11.1.965/forge-1.6.4-9.11.1.965-universal.jar /Applications/MultiMC.app/Data/libraries/net/minecraft/launchwrapper/1.8/launchwrapper-1.8.jar /Applications/MultiMC.app/Data/libraries/org/ow2/asm/asm-all/4.1/asm-all-4.1.jar /Applications/MultiMC.app/Data/libraries/org/scala-lang/scala-library/2.10.2/scala-library-2.10.2.jar /Applications/MultiMC.app/Data/libraries/org/scala-lang/scala-compiler/2.10.2/scala-compiler-2.10.2.jar /Applications/MultiMC.app/Data/libraries/lzma/lzma/0.0.1/lzma-0.0.1.jar /Applications/MultiMC.app/Data/libraries/com/mojang/minecraft/1.6.4/minecraft-1.6.4-client.jar Native libraries: /Applications/MultiMC.app/Data/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar /Applications/MultiMC.app/Data/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-osx.jar Mods: [✔️] craftingdead-1.3.5_B2-1.6.4-arzio_compat-obf.jar Params: --username london_tipton --session token:: --version 1.6.4 --gameDir /Applications/MultiMC.app/Data/instances/Official Crafting Dead CD_1.3.5_PATCH/.minecraft --assetsDir /Applications/MultiMC.app/Data/assets/virtual/legacy --tweakClass cpw.mods.fml.common.launcher.FMLTweaker Window size: 854 x 480 Java Arguments: [-Xdock:icon=icon.png, -Xdock:name="MultiMC: Official Crafting Dead CD_1.3.5_PATCH", -Xms512m, -Xmx1024m, -Duser.language=en] Minecraft process ID: 6260 Using onesix launcher. Failed to start Minecraft: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap') at net.minecraft.launchwrapper.Launch.(Launch.java:33) at net.minecraft.launchwrapper.Launch.main(Launch.java:27) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:243) Exiting with -1 at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:278) at org.multimc.EntryPoint.listen(EntryPoint.java:143) at org.multimc.EntryPoint.main(EntryPoint.java:34) Process exited with exit code 255 (0xff). Please note that usually neither the exit code, nor its description are enough to diagnose issues! Always upload the entire log and not just the exit code.