Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

java.lang.NullPointerException: Rendering screen	at vazkii.psi.client.gui.GuiProgrammer.func_73863_a(GuiProgrammer.java:234)	at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:309)	at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1103)	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1051)	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:349)	at net.minecraft.client.main.Main.main(SourceFile:124)	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:483)	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)