net.minecraftforge.fml.common.LoaderException

There are no available Samebug tips for this exception. Do you have an idea how to solve this issue? A short tip would help users who saw this issue last week.

  • Crash 1.10
    via GitHub by Wasthereonce
    ,
  • Crashing On Startup
    via GitHub by LordOfSouls95
    ,
  • Mekanism 1.9.4 doesn't work
    via GitHub by MeycsHD
    ,
  • Crash Report
    via GitHub by SamB440
    ,
  • Crash on load
    via GitHub by poflynn
    ,
  • Crash on 1.10.2
    via GitHub by Kostronor
    ,
  • Help Ars Magica 2 ERROR
    via GitHub by XxLuminousxX
    ,
    • net.minecraftforge.fml.common.LoaderException: java.lang.NoClassDefFoundError: mcmultipart/block/BlockMultipartContainer at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:186) at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:562) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:216) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:439) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351) at net.minecraft.client.main.Main.main(SourceFile:124) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) Caused by: java.lang.NoClassDefFoundError: mcmultipart/block/BlockMultipartContainer at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:344) at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:485) at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) at com.google.common.eventbus.EventBus.post(EventBus.java:275) at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:235) at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:213) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) at com.google.common.eventbus.EventBus.post(EventBus.java:275) at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:142) at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:531) ... 10 more Caused by: java.lang.ClassNotFoundException: mcmultipart.block.BlockMultipartContainer at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 34 more Caused by: java.lang.NullPointerException at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ... 36 more

    Users with the same issue

    Unknown visitor
    Unknown visitor1 times, last one,
    Unknown visitor
    Unknown visitor1 times, last one,
    Unknown visitor
    Unknown visitor2 times, last one,
    Unknown visitor
    Unknown visitor2 times, last one,
    Unknown visitor
    Unknown visitor1 times, last one,
    120 more bugmates