Many time while working on Android development with eclipse we are getting this build error.
Description Resource Path Location Type
Error generating final archive: Debug Certificate expired on 6/4/11 11:22 PM Sample1 Unknown Android Packaging Problem
Reason for this error is debug certificate generated for your development is expired. This certificate is automatically generated by sdk.
To fix this problem delete debug.keystore file in you adv default store.
You can simply search and delete this file.
On windows you can fine it in user?s profile storage location.
On win 7 you can find this file at this location.