I'm trying to build an Android app using Unity and I need to test on different level API. In order to do that I used Android SDK Manager and downloaded 28, 26 and 24 as you can see on this picture :

The problem
Now in Unity when I set the target level API to one of those version I get an error :

What I've tried
The only version which works is when I set level 29 in Unity. I tried every version starting from level 24. I already restarted my computer and nothing changed.

CodePudding user response：

Make sure you have the API's installed in the folder you have selected in External Tools, open the SDK path and go to platforms.