Time: 10.3.2016 14:13
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at com.nitrodev.constructio.blocks.WoodenShell.onBlockActivated(WoodenShell.java:83)
	at net.minecraft.client.multiplayer.PlayerControllerMP.onPlayerRightClick(PlayerControllerMP.java:412)
	at net.minecraft.client.Minecraft.rightClickMouse(Minecraft.java:1569)
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:2123)
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1080)
	at net.minecraft.client.Minecraft.run(Minecraft.java:380)
	at net.minecraft.client.main.Main.main(Main.java:116)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
	at GradleStart.main(GradleStart.java:26)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- Head --
Stacktrace:
	at com.nitrodev.constructio.blocks.WoodenShell.onBlockActivated(WoodenShell.java:83)
	at net.minecraft.client.multiplayer.PlayerControllerMP.onPlayerRightClick(PlayerControllerMP.java:412)
	at net.minecraft.client.Minecraft.rightClickMouse(Minecraft.java:1569)