UnableToAccessFieldException

[Elias79]

[13:16:02] [main/INFO] [nmsot]: Now parsing material:WOOD
[13:16:02] [main/ERROR] [FML]: Unable to access any field net.minecraft.block.material.Material on type net.minecraftforge.fml.relauncher.ReflectionHelper$UnableToAccessFieldException: net.minecraftforge.fml.relauncher.ReflectionHelper$UnableToFindFieldException: java.lang.NoSuchFieldException: WOOD
[13:16:02] [main/WARN] [nmsot]:   Failed at              #
[13:16:02] [main/WARN] [nmsot]:   Caused by net.minecraftforge.fml.relauncher.ReflectionHelper$UnableToAccessFieldException: net.minecraftforge.fml.relauncher.ReflectionHelper$UnableToFindFieldException: java.lang.NoSuchFieldException: WOOD

[mgrouse]

I also have this error. This rule is in your example file please fix or advise on correct syntax.

Same error.