First of all, the log this thing spit out is at "compilation: create temp dir: compilation: download sketches and libraries: 637 - Pastebin.com when i try to compile. I put the 2 issues in the same thread because it seems to indicate that they're the same issue in fact.
Removing the SdFat library was impossible because it kept giving me the error . It never specified any more than that. I then tried to overwrite that library with a new version by uploading the new version on top of the old one, and that caused the compiler error.