I'm using android studio 4.0 and everything was working fine but this time when I opened android studio I realized that android studio can't find devices:
I opened the AVD manager and I can still see the emulator exists and when I tried to start it, it started but with this message:
But the android studio still couldn't find any device. when I run adb devices the emulator is listed!.
The same went for physical devices.
this is my SDK tools:

Here it's what I tried to do:
- delete the emulator and recreated it.
- delete the android studio settings folder.
- use a different version of android studio.

