Bloodbane said:If you run it from command prompt, it would be easier to see what's wrong
Anyways, where did exactly you place packer program and its batch file?
maxman said:Ninja'd.
P.S.:
You should leave it outside of the data folder in your project so you could extract. If you put it inside the data folder for packing, it will not work.
packer.bat paks/mybor.pak data
packer.bat mfa-saga.pak data