In the lower right of the screen WAU tells you if it is going to download with or without externals. WITH means that it comes with the libraries/dependencies. WITHOUT means that it doesn't come with them and you have to install the libraries yourself as standalones.
I'm guessing that it downloaded them WITHOUT for some reason, and you missed some dependencies, etc, etc, got some errors, etc, and viola. :) Glad you got it fixed though.