java.lang.NullPointerException

There are no available Samebug tips for this exception. Do you have an idea how to solve this issue? A short tip would help users who saw this issue last week.

  • GitHub comment 177#279502200
    via GitHub by jazzpi
    ,
  • Robot placing bug with RFTools
    via GitHub by lkoelln
    ,
    • java.lang.NullPointerException at net.minecraft.item.ItemBlock.func_180614_a(ItemBlock.java:49)[acl.class:?] at mcjty.lib.compat.CompatItemBlock.clOnItemUse(CompatItemBlock.java:39)[CompatItemBlock.class:?] at mcjty.lib.compat.CompatItemBlock.func_180614_a(CompatItemBlock.java:35)[CompatItemBlock.class:?] at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:780)[ForgeHooks.class:?] at net.minecraft.item.ItemStack.func_179546_a(ItemStack.java:144)[adz.class:?] at li.cil.oc.server.agent.Player.li$cil$oc$server$agent$Player$$tryPlaceBlockWhileHandlingFunnySpecialCases(Player.scala:475)[Player.class:?] at li.cil.oc.server.agent.Player$$anonfun$placeBlock$1.apply(Player.scala:292)[Player$$anonfun$placeBlock$1.class:?] at li.cil.oc.server.agent.Player$$anonfun$placeBlock$1.apply(Player.scala:287)[Player$$anonfun$placeBlock$1.class:?] at li.cil.oc.server.agent.Player.callUsingItemInSlot(Player.scala:438)[Player.class:?] at li.cil.oc.server.agent.Player.placeBlock(Player.scala:287)[Player.class:?] at li.cil.oc.server.component.Agent$$anonfun$place$1.apply(Agent.scala:258)[Agent$$anonfun$place$1.class:?] at li.cil.oc.server.component.Agent$$anonfun$place$1.apply(Agent.scala:252)[Agent$$anonfun$place$1.class:?] at scala.collection.immutable.List.foreach(List.scala:383)[List.class:?] at li.cil.oc.server.component.Agent$class.place(Agent.scala:252)[Agent$class.class:?] at li.cil.oc.server.component.Drone.place(Drone.scala:27)[Drone.class:?] at generated.li.cil.oc.CallWrapper_li_cil_oc_server_component_Drone_place.call(Unknown Source)[?:?] at li.cil.oc.server.machine.Callbacks$ComponentCallback.apply(Callbacks.scala:123)[Callbacks$ComponentCallback.class:?] at li.cil.oc.server.network.Component$class.invoke(Component.scala:112)[Component$class.class:?] at li.cil.oc.server.network.Network$ComponentConnectorBuilder$$anon$1.invoke(Network.scala:623)[Network$ComponentConnectorBuilder$$anon$1.class:?] at li.cil.oc.server.machine.Machine.invoke(Machine.scala:358)[Machine.class:?] at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.apply(ComponentAPI.scala:78)[ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.class:?] at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.apply(ComponentAPI.scala:78)[ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.class:?] at li.cil.oc.server.machine.luac.NativeLuaArchitecture.invoke(NativeLuaArchitecture.scala:55)[NativeLuaArchitecture.class:?] at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5.apply(ComponentAPI.scala:78)[ComponentAPI$$anonfun$initialize$5.class:?] at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5.apply(ComponentAPI.scala:74)[ComponentAPI$$anonfun$initialize$5.class:?] at li.cil.oc.util.ExtendedLuaState$ExtendedLuaState$$anon$1.invoke(ExtendedLuaState.scala:24)[ExtendedLuaState$ExtendedLuaState$$anon$1.class:?] at li.cil.repack.com.naef.jnlua.LuaState.lua_pcall(Native Method)[LuaState.class:?] at li.cil.repack.com.naef.jnlua.LuaState.call(LuaState.java:677)[LuaState.class:?] at li.cil.oc.server.machine.luac.NativeLuaArchitecture.runSynchronized(NativeLuaArchitecture.scala:177)[NativeLuaArchitecture.class:?] at li.cil.oc.server.machine.Machine.update(Machine.scala:562)[Machine.class:?] at li.cil.oc.common.entity.Drone.func_70071_h_(Drone.scala:357)[Drone.class:?] at net.minecraft.world.World.func_72866_a(World.java:1964)[aid.class:?] at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:839)[ls.class:?] at net.minecraft.world.World.func_72870_g(World.java:1934)[aid.class:?] at net.minecraft.world.World.func_72939_s(World.java:1750)[aid.class:?] at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:620)[ls.class:?] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)[MinecraftServer.class:?] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387)[ld.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)[MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)[MinecraftServer.class:?] at java.lang.Thread.run(Thread.java:745)[?:1.8.0_121]
    No Bugmate found.