---- Minecraft Crash Report ---- // There are four lights! Time: 7/4/15 4:51 PM Description: Ticking memory connection java.lang.NullPointerException: Ticking memory connection at com.kitsu.medievalcraft.item.craftingtools.ForgeHammer.onClick(ForgeHammer.java:167) at com.kitsu.medievalcraft.item.craftingtools.ForgeHammer.onItemUse(ForgeHammer.java:436) at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:507) at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:142) at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:422) at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122) at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:241) at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726) at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614) at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485) at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at com.kitsu.medievalcraft.item.craftingtools.ForgeHammer.onClick(ForgeHammer.java:167) at com.kitsu.medievalcraft.item.craftingtools.ForgeHammer.onItemUse(ForgeHammer.java:436) at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:507) at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:142) at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:422) at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122) at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:241) -- Ticking connection -- Details: Connection: net.minecraft.network.NetworkManager@481fc11c Stacktrace: at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726) at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614) at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485) at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) -- System Details -- Details: Minecraft Version: 1.7.10 Operating System: Linux (amd64) version 3.13.0-37-generic Java Version: 1.8.0_45, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 880781896 bytes (839 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB) JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M 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 v7.10.99.99 Minecraft Forge 10.13.4.1448 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 UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) UCHIJAAAA FML{7.10.99.99} [Forge Mod Loader] (forgeSrc-1.7.10-10.13.4.1448-1.7.10.jar) UCHIJAAAA Forge{10.13.4.1448} [Minecraft Forge] (forgeSrc-1.7.10-10.13.4.1448-1.7.10.jar) UCHIJAAAA kitsumedievalcraft{2.2.0} [ForgeCraft] (bin) GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread. 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['Player223'/204, l='New World', x=2340.45, y=3.00, z=-233.83]] Type: Integrated Server (map_client.txt) Is Modded: Definitely; Client brand changed to 'fml,forge'