cramist

So far every time i try to load a mod pack I've been getting error messages in the launcher console saying that its Failed to load class "org.slf4j.impl.StaticLoggerBinder". and it says it cant find the file version.json and it loads up the Minecraft play window but its just pure white, ive backed up important files and full swiped the computer and re-downloaded and it still doesn't work. so far ive only tested the regular tekkit classic mod pack.