I can not switch to Android ,I cant switch to Android

,I finished my project, I want to test it and publish it but I cant switch to Android, you can see the picture, I pressed the button ( Install with Unity Hub), I did install it , I ticked add modules and ticked (Android Build support) and I ticked all the boxes but nothing happen . please can you help me.

Hello, when you were doing this did you see a blue progress bar above the installation like this:

If you wait for it to complete and relaunch the editor and it should work.

What should i do next? you said( and relaunch the editor) what does that mean?