Android app crashes after SDK-tools update version (NoClassDefFound, tool version 22)

Question

I fixed it by going into Java Build Path > Order and Export tab.

Click everything in the list "Android Private Libraries".

Then "Project -> Clean". That fixed my issue.

Just over 1.5 days on this issue, solved my problem by reading Google+.

Had the same issue as StylezSoft. To clarify even further, below is my Java Build Path from Eclipse after that I solved the issue (by ticking the android-support-v4.jar library)

Then I cleaned the Project (Project > Clean... > OK) and everything worked fine.