Android Studio 'Run app' dialogue doesn't appear in one project but will in another

Question

I\'m toying with Android Studio making a very simple very stupid app to learn about saving key preferences and I ran into a weird obstacle. I\'ll try to provide as much as I can

Answer 1

In Android Studio you need create a Run Configuration in your project.

Go to this link to left run icon

And click on Edit Configuration, after in the windows configure like this:

And save it, for test click run icon.