Android studio doesn't recognize the running emulator

26
votes

When I run my app from AndroidStudio 0.4.3 using Run I see Choose Device which has two sections choose a running device or Launch Emulator. I don't have a running emulator at the moment so I click the ... to launch AVD manager and start an emulator. At this point I see that under choose a running device the emulator I just launched shows up but its listed as offline.

In the past the offline status went away when the emulator was fully up and running. However, now I've noticed that when the emulator is launched fully, it no longer appears in choose a running device.

I feel like I'm always playing cat and mouse game with android studio picking up the emulator. Is there a better way to do this? Am I missing something?

7
androidandroid-emulatorandroid-studio
try to kill-server then type adb start-server commands – mohammed momn
If kill-server/start-server does not work, try terminating ALL running adb instances, then click the Android tab in Android Studio (this should restart ADB). If this still does not work it could be that AS and your AVD use different ADB instances - make sure that your ANDROID_SDK_HOME environment variable is set and that AS uses the same SDK as set for the environment variable. – free3dom

7 Answers

41
votes

Disable and then Enable ADB Integration

In Android Studio go to

  1. Menu -> Tools
  2. Android
  3. Enable ADB Integration (should be checked, click to remove check)
  4. Enable ADB Integration (should not be checked, click to add check)

Run your app again. Emulator that was previously missing from Run dialog should be available to be selected upon which to run your app.

28
votes

Try to kill the adb server and restart it.

Locate your adb binary (linux/osx) or adb.exe (windows) and do:

adb kill-server
adb start-server

this should fix your problem

Even if your problem still not solved then Restart emulator.

4
votes

Wipe Data and restarting emulator helped me, hope this helps to someone.

enter image description here

2
votes

On Windows, running Android Studio with administrator permissions can help (in addition to restarting adb server).

1
votes

Unchecking the "Enable ADB " worked for me

1
votes

inside AVD manager, select your virtual devices, then 1 stop, 2 wipe user data, 3 cold reboot, works for me.

0
votes

In Android Studio Arctic Fox (2020.3.1) it helped me to cold boot the device.

enter image description here