Resolved: Creating a bundle to publish an Android app

Question:

While trying to build and then upload a bundle to publish an Android app, I have the following issue.
In the Android Studio menu, I choose:
I expect to see (at the end) a file called app-release.aab created in the directory:
But I do not see it, I assume that for some reason it is not created.
I have a question, concerning the way I do. Am I supposed to use a different upload key for each application I create?
If the answer to the question above is NO; what am I missing?

Answer:

When you build signed bundle like this
Android Studio must notify you about successful build with this notification in bottom-right corner of screen:
Once you click on locate word in this notification, you will be redirected to the real directory where bundle created is.
If you can’t see this notification, maybe your build was failed? Are you sure build is success? Are you sure you build a release version, not debug?

If you have better answer, please add a comment about this, thank you!