Code works inside of eclipse, outside when compiled into the mod it crashes with the following error. ---- Minecraft Crash Report ----// Hey, that tickles! Hehehe!Time: 2/17/15 11:43 PMDescription: Exception in server tick loopjava.lang.NoClassDefFoundError: com/bioxx/tfc/api/TFCBlocks at com.beingben.TFCraft_Addon.TFCGrassDropsEvent.onBlockBreak(TFCGrassDropsEvent.java:21) at cpw.mods.fml.common.eventhandler.ASMEventHandler_139_TFCGrassDropsEvent_onBlockBreak_HarvestDropsEvent.invoke(.dynamic) at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138) at net.minecraftforge.event.ForgeEventFactory.fireBlockHarvesting(ForgeEventFactory.java:155) at net.minecraft.block.Block.func_149690_a(Block.java:656) at net.minecraft.block.Block.func_149697_b(Block.java:648) at net.minecraft.block.Block.func_149636_a(Block.java:974) at net.minecraft.block.BlockTallGrass.func_149636_a(BlockTallGrass.java:88) at com.bioxx.tfc.Blocks.Vanilla.BlockCustomTallGrass.func_149636_a(BlockCustomTallGrass.java:92) at net.minecraft.server.management.ItemInWorldManager.func_73084_b(ItemInWorldManager.java:299) at net.minecraft.server.management.ItemInWorldManager.func_73074_a(ItemInWorldManager.java:186) at net.minecraft.network.NetHandlerPlayServer.func_147345_a(NetHandlerPlayServer.java:489) at net.minecraft.network.play.client.C07PacketPlayerDigging.func_148833_a(SourceFile:53) at net.minecraft.network.play.client.C07PacketPlayerDigging.func_148833_a(SourceFile:8) at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)Caused by: java.lang.ClassNotFoundException: com.bioxx.tfc.api.TFCBlocks 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) ... 22 moreCaused by: java.lang.NullPointerExceptionA detailed walkthrough of the error, its code path and all known details is as follows:----------------------------------------------------------------------------------------- System Details --Details: Minecraft Version: 1.7.10 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 126601248 bytes (120 MB) / 880279552 bytes (839 MB) up to 1908932608 bytes (1820 MB) JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G 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 v7.10.85.1272 Minecraft Forge 10.13.2.1272 15 mods loaded, 15 mods active mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available FML{7.10.85.1272} [Forge Mod Loader] (forge-1.7.10-10.13.2.1272.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available Forge{10.13.2.1272} [Minecraft Forge] (forge-1.7.10-10.13.2.1272.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available tfc_coremod{0.79.15} [TFC[coremod]] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available CodeChickenCore{1.0.4.29} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available NotEnoughItems{1.0.3.65} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.3.65-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available terrafirmacraft{0.79.15} [TerraFirmaCraft] ([1.7.10]TerraFirmaCraft-0.79.15.538.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available Baubles{1.0.1.10} [Baubles] (Baubles-1.7.10-1.0.1.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available Botania{r1.4-155} [Botania] (Botania r1.4-155.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available ChickenChunks{1.3.4.16} [ChickenChunks] (ChickenChunks-1.7.10-1.3.4.16-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available FastCraft{1.16} [FastCraft] (fastcraft-1.16.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available magicalcrops{1.7.2 - 0.1 ALPHA} [Magical Crops] (magicalcrops-1.7.10_0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available MineTweaker3{3.0.9B} [MineTweaker 3] (MineTweaker3-1.7.10-3.0.9C.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available ModTweaker{0.6} [ModTweaker] (ModTweaker-1.7.X-0.6-0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available TFCraftAddon{1.0} [TFCraftAddon] (TFCraftaddon-1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available Profiler Position: N/A (disabled) Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Player Count: 1 / 8; [EntityPlayerMP['beingben'/215, l='New World', x=8845.72, y=148.00, z=-7700.95]] Type: Integrated Server (map_client.txt) Is Modded: Definitely; Client brand changed to 'fml,forge'