Problem:
'Running Android Link' has encountered a problem.
Failed
java.lang.NullPointerException
OK <<Details
Solution:
1. In Visual Studio, from the menu bar, click Window, then Preferences.
2. Expand the Android item from the list on the left, and select Lint Error Checking.
3. Uncheck [ ] When saving files, check for errors.
4. Click OK
5. Close and re-start Visual Studio to test.
Resources:
http://stackoverflow.com/questions/11855352/constant-running-android-lint-failed-nullpointerexception-popping-up-in-eclip