Posted December 16, 201410 yr I need help figuring out how to fix this Crash. I am working on a personal modpack for me and friends but it seems to be crahng when I test it. This is the report ---- Minecraft Crash Report ---- // On the bright side, I bought you a teddy bear! Time: 12/15/14 8:11 PM Description: Initializing game java.lang.NoClassDefFoundError: cpw/mods/fml/common/IPlayerTracker at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:420) 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 cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208) at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187) 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 cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118) at cpw.mods.fml.common.Loader.loadMods(Loader.java:492) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:867) at net.minecraft.client.main.Main.main(SourceFile:148) 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.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.common.IPlayerTracker at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 35 more Caused by: java.lang.NullPointerException at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ... 37 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:420) 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 cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208) at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187) 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 cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118) at cpw.mods.fml.common.Loader.loadMods(Loader.java:492) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480) -- Initialization -- Details: Stacktrace: at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:867) at net.minecraft.client.main.Main.main(SourceFile:148) 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.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) -- System Details -- Details: Minecraft Version: 1.7.10 Operating System: Windows 8.1 (amd64) version 6.3 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 119403960 bytes (113 MB) / 288751616 bytes (275 MB) up to 1060372480 bytes (1011 MB) JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP v9.05 FML v7.10.85.1264 Minecraft Forge 10.13.2.1264 21 mods loaded, 21 mods active mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed FML{7.10.85.1264} [Forge Mod Loader] (forge-1.7.10-10.13.2.1264.jar) Unloaded->Constructed Forge{10.13.2.1264} [Minecraft Forge] (forge-1.7.10-10.13.2.1264.jar) Unloaded->Constructed CodeChickenCore{1.0.4.29} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed NotEnoughItems{1.0.3.74} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.3.74-universal.jar) Unloaded->Constructed antiqueatlas{4.0.1a-1.7.10} [Antique Atlas] (antiqueatlas-4.0.1a-1.7.10.jar) Unloaded->Constructed blocklings{2.1.1} [blocklings] (Blocklings-v2.1.1-1.7.10.jar) Unloaded->Constructed CustomSpawner{3.3.0} [DrZhark's CustomSpawner] (CustomMobSpawner 3.3.0.zip) Unloaded->Constructed DragonMounts{r41-1.7.10} [Dragon Mounts] (DragonMounts-r41-1.7.10.jar) Unloaded->Constructed MoCreatures{6.3.0} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.3.0.zip) Unloaded->Constructed EnviroMine{1.1.89} [EnviroMine] (EnviroMine-v1.1.89.jar) Unloaded Steamcraft{0.26.4} [Flaxbeard's Steam Power] (Flaxbeard'sSteamPower-1.7.10-0.26.4.zip) Unloaded goblin{0.6} [Goblins! Mod] (Goblins Mod-6.0.jar) Unloaded GraveStone{2.11.1} [GraveStone] (GraveStone 2.11.1.jar) Unloaded iChunUtil{4.1.2} [iChunUtil] (iChunUtil-4.1.2.jar) Unloaded Hats{4.0.1} [Hats] (Hats-4.0.1.jar) Unloaded LavaMonsters{2.2.1} [Lava Monsters] (LavaMonsters-1.7.10-2.2.1.jar) Unloaded radixcore{1.3.4} [RadixCore] (RadixCore-1.7.10-1.3.4-universal.jar) Unloaded mca{4.1.5} [Minecraft Comes Alive] (MCA-1.7.10-4.1.5-universal.jar) Unloaded Morph{0.9.1} [Morph] (Morph-Beta-0.9.1.jar) Unloaded TwilightForest{1.20.5} [The Twilight Forest] (twilightforest-1.6.4-1.20.5.jar) Unloaded Launched Version: 1.7.10-Forge10.13.2.1264 LWJGL: 2.9.1 OpenGL: Intel® HD Graphics 4000 GL version 4.0.0 - Build 10.18.10.3345, Intel GL Caps: Using GL 1.3 multitexturing. Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported. Anisotropic filtering is supported and maximum anisotropy is 16. Shaders are available because OpenGL 2.1 is supported. Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Resource Packs: [sphax PureBDcraft 128x MC18.zip] Current Language: English (US) Profiler Position: N/A (disabled) Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Anisotropic Filtering: Off (1) I would love if someone could help me figure this out.
December 16, 201410 yr Ok look, i have made a modpack but, this is maybe a ticking screen issue. Maybe the Sphax PureBDCraft Resource pack is crashing it or one of your mods is making minecraft not function properly causing it to crash, maybe some mods you have included are mods that need mods that support it like Ars Magica needs Animation-API to function and work. You need to figure that stuff out and such. And maybe you can try to see if some mods are compatible with 1.7.10. Usually what i do is test the modpack with each mod, one by one to see if minecraft will work and start up well. So like first start MC with Tinker Construct, and if it works, go ahead and put another mod and see if MC starts up and functions properly
December 16, 201410 yr Yes i see a Twilight Forest 1.6.4 Mod Version! you need 1.7.10! Thats why and maybe a few other things
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