An internal error occurred during: “Launching Project”. java.lang.NullPointerException

Question

My android project was compiling well but suddenly it stopped launching. Then I tried to launch other projects from Project Explorer and all project threw same exception:

Answer 1

I had the same issue all of a sudden. This only happened when I ran in Debug mode, and for me what fixed it was... Run -> Remove All Breakpoints. Then I could add them back, and it ran in debug mode fine.