Nevermind, I'll just remake it with the new Optifine so it has compatibility...
I was re-coding my client hack for the newest 1.3 update, but this gets in my way.
I've tried recompiling MCP, updating it and changed the files a tiny bit it said were bugged to see if anything could fix the problem. So far, nothing allows me to reobfuscate without these annoying errors.
Also, It says I modified classes that I never even opened... Any ideas?
Nevermind, I'll just remake it with the new Optifine so it has compatibility...