Android Studio SDK

Hi!

Newly installed Unity, I keep encountering the following problem:
When I hit the "Build an run" button/command, I get an error massage telling that the path of the Android Studio SDK must be specified.
Now, I have Android studio installed, I know where to specify the path - edit/preferences/external tools.
The Android SDK that should have been installed with Unity seems missing. Now, when I browse to the directory I installed Android SDK
/home/bene/AndroidStudio/android-studio/bin,
Unity doesn't seem to find the relevant file.
Probably, when I habe solved this problem, the same problem will occur with the Adroid NDK.

 

Well, uninstalled it all and just now reinstall Unitz, this time I made sure to check all choices and sub-choices for the Android pack...