I'm learning Android and I ran on Unity BUILD for Android, and the .apk file was installed to smartphone Apps.
At the time the installation was successfully completed, two situations are noted:
1- The "CONCLUDED" button on the smartphone screen is active, and the "OPEN" button is inactive.
2- The App icon was not created on the Smartphone screen.
I think that in the 2 error messages on the Unity console is the solution, but I do not know how to find or what to do to fix the problem.