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Forging a Minecraft mod
Basic Minecraft modding with Minecraft Forge
when i recompile, it crashes and say 100 errors and 1 warning. something about server side...
With that information I can't really help you much. If you haven't done anything with the code I would suggest trying to reinstall forge (and make sure you don't get any errors while installing). If you just added some code that caused the errors I would suggest removing that code.