Вот такая шняга вывалилась в эклипсе. правим так:
 

1.Select the project.
2.Open the run configuration .
3.New configuration->Classpath tab->under Bootstrap entries->find android library->remove it
4.Now, select bootstrap entries->click on Advanced->select Add library->click ok.
5.Select the JRE-> finish
6.Run the project now.