android - Link of class 'Landroid/support/v4/app/Watson; failed - Unable to resolve superclass of Lcom/actionbarsherlock/app/SherlockActivity -


i have android project working on few weeks ago working fine in last attempt, project compiles fine, while launching application, getting following warning , crashes application.

unable resolve superclass of landroid/support/v4/app/watson; link of class 'landroid/support/v4/app/watson;' failed  unable resolve superclass of  lcom/actionbarsherlock/app/sherlockfragmentactivity;

please tell me how can fix this. thanks

i noticed had problem after updating adt plugin revision 22. problem raised due new android package named android private libraries not included on old projects.

i fix issue following below steps:

1.right click on project

2.build path-> configure build path -> order , export

3.check android private libraries , click ok

4.clean project

5.rebuild project


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