IntelliJ MyClass.class (no such file or directory) when starting the application

Question

I am trying to run an Android app on IntelliJ. I created the project from an existing source, and I connected the SDK correctly, everything works fine as long as there, but when I try to start, it writes messages saying:

Error: MyClass.class (No such file or directory)

And this happens with all the classes I created.

Any idea what could happen? Perhaps some settings I should set in the IDE.

Thank.

Answer 1

! intelliJ > p > Java javac in-process ( Java6 +).