“waiting for target device to come online” in Android Studio 2.3

Question

Recently upgraded to Android Studio from 2.2.3 to 2., running on Win10

Emulator stopped working since then. Tried installing other images(25 rev 4)/upgrading for AVD

Answer 1

• first delete your AVD from tools>avd manager
• close android studio and restart computer
• open android studio click on run button on toolbar and click on create new virtual device from there

worked for me