My android studio doesn't see my virtual and physical devices

Issue

My android studio is doesn't see my devices virtual/physical. (I am using ubuntu)

I've already tried change the platform-tools in home/user/android/sdk, delete and download the avd and my physical phones developer settings and debugging settings is on.

This is the screenshot of the problem.

By the way there is no error messages.

Solution

You can try these commands;

adb kill-server // kill server
adb start-server // start server
adb devices // show all active devices

If this problem will not be resolved, please restart Android Studio

Answered By - secret