In the Play developer console it says:
Your APK does not seem to be designed for tablets
But I have added layouts to layout
After having this same problem and foraging through several forums, what worked for me was changing the targetSDKVersion in the manifest to 11. You can change either minSDKVersion OR targetSDKVersion, as long as one of them is at 11. Also if you use any plugins (like Google Play Services), there's a chance they included their own manifest file somewhere, so make sure ALL the manifest have the same SDK values or your build will not run.