An error occurred after update the Android SDK Tool REV 22 "Unable to resolve superclass of L"
With rev 22, they added "Android Private Libraries".
For every related Project (including the actionbarsherlock project), right click it -> Properties -> Java Build Path -> Order and Export -> Check Android Private Libraries
Besides adding Android Private Libraries, that should be also related to the target SDK version.
Try set 'android:targetSdkVersion="17"' in the manifest XML, this solve my build problem recently after updating the SDK
After adding Android Private Libraries, I had the problem with
... Unable to execute dex: Multiple dex files define ... ... Conversion to Dalvik format failed: Unable to execute dex: Multiple dex ...After deleting all libs except for "Android 4.2", "Android Dependencies" and "Android Private Libraries" the problem was solved and I could export my app.