Error building Player: UnityException: Resource re-package failed!

Hi ,
I know this error appears in many thread,

Since the Unity Free 4.1.3, when building my app I get this error. (No problems with unity 3.5)

I checked the version of the Android SDK and let it to R21 API 14 as said in many threads.
I also tried with R20 API 14, no way to build

But the error is still here :

returned under Unity 3.5 worked perfectly, waiting for a real solution to build under unity 4 :frowning:

http://stackoverflow.com/questions/13017922/androidscreenorientation-sensorportrait-not-valid

I will make a fix for the next version…

Oh, there is a workaround. Try installing 4.0.3 API-15 SDK