@RCL:
Whats missing, is that if the files are not extracted yet, GenerateProjectFiles.sh should extract them. It just checks if the zips actually exist, and says that it wont extract them ( I dont know why ).
So for example if you messed one time something up, git checkout again, and you got the zip files from the last time, and run GenerateProjectFiles.sh again, you get errors because the zips are not extracted, and wont be extracted.