Talk:Decompiling Optifine/@comment-45.77.60.114-20190302110746

I try to decompile OptiFine 1.8.8 HD U I7 but there are a lot of unfixable errors like cannot convert from Render to RenderPlayer. The whole RenderPlayer class in in errors. I also dont understand "Then, drag the unmodded Minecraft jar into the jars/versions/ in your MCP folder." Which unmodded jar? Can you help me please?