不知道为什么奔溃了，现在是进去玩的时候，帧数会突然很低，然后就奔溃了。以下是代码
Description: Unexpected error
java.lang.IllegalStateException:Alreadytesselatingatnet.minecraft.client.renderer.Tessellator.func_78371_b(Tessellator.java:374)at java:898)at net.minecraft.client.main.Main.main(SourceFile:148)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)at java.lang.reflect.Method.invoke(Unknown
Description: Unexpected error
java.lang.IllegalStateException:Alreadytesselatingatnet.minecraft.client.renderer.Tessellator.func_78371_b(Tessellator.java:374)at java:898)at net.minecraft.client.main.Main.main(SourceFile:148)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)at java.lang.reflect.Method.invoke(Unknown
