TimeCentaur

I downloaded the latest forge and then downloaded the latest optifine .jar and placed it into my mods folder. When I try to run it, the game crashes and says only this: Error: java.lang.AbstractMethodError The crash report itself doesn't open at all. Any of my other mods work but Optifine C3 doesn't. I tried C2 (the only other option) and the mirrors if that doesn't' anything but it didn't work. This is all for 1.12