---- Minecraft Crash Report ---- WARNING: coremods are present: IC2core (industrialcraft-2-2.6.127-ex110.jar) Contact their authors BEFORE contacting forge // I just don't know what went wrong :( Time: 12/9/16 11:12 AM Description: Exception in server tick loop net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from IndustrialCraft 2 (IC2) Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Unknown Source) at java.lang.Class.getConstructor0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at ic2.core.ref.TeBlock.buildDummies(TeBlock.java:394) at ic2.core.IC2.init(IC2.java:320) 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.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:600) 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 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:243) at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:221) 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 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:145) at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:795) at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:107) at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:333) at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:214) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 38 more Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@22d7b4f8 from coremod FMLCorePlugin at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:253) at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ... 40 more Caused by: java.lang.RuntimeException: Attempted to load class bft for invalid side SERVER at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:56) at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:249) ... 42 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.10.2 Operating System: Windows 8.1 (amd64) version 6.3 Java Version: 1.8.0_45, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 183425608 bytes (174 MB) / 368050176 bytes (351 MB) up to 2058354688 bytes (1963 MB) JVM Flags: 3 total; -Xmx2G -Xms256M -Xmn256M IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP 9.32 Powered by Forge 12.18.3.2185 4 mods loaded, 4 mods active States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored UCHI mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) UCHI FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.3.2185-universal.jar) UCHI Forge{12.18.3.2185} [Minecraft Forge] (forge-1.10.2-12.18.3.2185-universal.jar) UCHE IC2{2.6.127-ex110} [IndustrialCraft 2] (industrialcraft-2-2.6.127-ex110.jar) Loaded coremods (and transformers): IC2core (industrialcraft-2-2.6.127-ex110.jar) Profiler Position: N/A (disabled) Is Modded: Definitely; Server brand changed to 'fml,forge' Type: Dedicated Server (map_server.txt)