Unable to Run .java file in Android Studio 4.0.1, Edit Configuration appears

Question

While trying to Run the application, "Edit Configuration" appears and this below window opens:

How to proceed after this?

Pressing "Run" button does nothing.

Further on expanding the Templates drop-down, I am getting no-module in the Module box which is the only option available there.

Answer 1

Its because you haven't created the main activity / First activiy (module)

Also try refactoring your modules and package name

You will be promted to select an activity when starting a project, you might have missed it