[jbc218]

This year, you no longer have to change build.properties, so whatever changes or additions you made there you should undo. Instead, what you're supposed to do, is put those libraries (navx, talonSRX, or any other user library) into your C:\Users\(current user)\wpilib\user\java\lib folder, make sure to update your build path on Eclipse, and then restart Eclipse. You only have to do that with user libraries, so you don't have to do anything to your wpilib, networktables, opencv, or cscore libraries.