net.minecraftforge.fml.common.LoaderException: java.lang.NoClassDefFoundError: codechicken/lib/packet/PacketCustom$ICustomPacketHandler

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Samebug tips

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Try installing the latest version of Thermal Foundation. Make sure CofH Core and Thermal Expansion are also updated to the same version as TF.

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This is thrown when the Java Virtual Machine (JVM) tries to load a particular class and the specified class cannot be found in the classpath. Make sure Trove library jar is added to your project's build path and you are using the latest version.

Solutions on the web

via GitHub by HyperMan19680
, 1 year ago
java.lang.NoClassDefFoundError: codechicken/lib/packet/PacketCustom$ICustomPacketHandler
via GitHub by LordOfSouls95
, 1 year ago
java.lang.NoClassDefFoundError: codechicken/lib/packet/PacketCustom$ICustomPacketHandler
via GitHub by SprooksUK
, 1 year ago
java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
via GitHub by poflynn
, 1 year ago
java.lang.NoClassDefFoundError: modconfig/IConfigCategory
via GitHub by SamB440
, 1 year ago
java.lang.NoClassDefFoundError: modconfig/IConfigCategory
via GitHub by Wasthereonce
, 1 year ago
java.lang.NoClassDefFoundError: mcmultipart/block/BlockMultipartContainer
net.minecraftforge.fml.common.LoaderException: java.lang.NoClassDefFoundError: codechicken/lib/packet/PacketCustom$ICustomPacketHandler
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:344)
at net.minecraftforge.fml.common.ILanguageAdapter$ScalaAdapter.setInternalProxies(ILanguageAdapter.java:140)
at net.minecraftforge.fml.common.ProxyInjector.inject(ProxyInjector.java:86)
at sun.reflect.GeneratedMethodAccessor5.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 net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:211)
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 net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:512)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:417)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:329)
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)

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