"Failed to execute the game. Please check the installation."

I tried to run the game as normally, through the GameLauncher, it downloaded a small patch, and then it brought up this error message, and now I cannot run the game at all.

I tried the manual patch to fix this, but it was stuck on "Creating: Base.wz" for an hour, I don't think it's doing anything.

Any other ideas of things I can do before I resort to reinstallation?