4

When I first start Android Studio opening an existing project, and click "Run", I get the error message "Error running app, No target device found".

I have my Samsung plugged in and ADB debugging enabled. It correctly shows up with the "adb devices" command and ADB shell works fine. I tried "adb start-server" with no joy. Strangely, If I start 'Debug app' first and then 'Run' it works fine, but I don't understand why this annoying step is necessary. Other Stack Overflow answers said to do "Edit Configurations" but that doesn't show the options suggested. I'm running AS V3.01. Any clue?

Ryan M
  • 18,333
  • 31
  • 67
  • 74
DontPanic
  • 2,164
  • 5
  • 29
  • 56
  • `Strangely, If I start 'Debug app' first and then 'Run' it works fine` what do you mean? – Sagar May 18 '18 at 15:08
  • Did you waited a time so adb started while no devices apear? – Marcos Vasconcelos May 18 '18 at 20:23
  • 1
    Yes I waited plenty. And the device *always* appears. But still no joy. – DontPanic May 19 '18 at 20:35
  • in my case that was because of Platform-Tools. check my solution here : https://stackoverflow.com/questions/40022679/android-studio-no-target-device-found/71219257#:~:text=In%20my%20case%20that%20was%20because%20of%20Platform%2DTools.%20I%20updated%20that%20and%20solved.%20path%3A%20File%20%7C%20Settings%20%7C%20Appearance%20%26%20Behavior%20%7C%20System%20Settings%20%7C%20Android%20SDK%20%2D%3E%20Android%20SDK%20Platform%2DTools – Sadegh J Feb 22 '22 at 10:06

2 Answers2

16

I found my problem. Under Run->EditConfigurations->DeploymentTargetOptions, I selected USB Device (my phone is a USB device, right?). But noooo, when I select Open Select Deployment Target Dialog, everything is peachy. Also, checking Use same device for future launches bypasses the dialog entirely and all is good.

DontPanic
  • 2,164
  • 5
  • 29
  • 56
  • Exactly the same issue, and exactly this solution worked for me. StackoverFlow is great! – Raghav Sep 25 '18 at 03:47
  • 1
    If you don't see the `DeploymentTargetOptions` and do have an emulated device created, try restarting Android Studio and it should show up. – lasec0203 Sep 08 '19 at 05:52
0

  • Check USB connection. Might be device is not connected properly.

  • Enable USB debugging mode on Device How to enable USB debugging in Android?

  • Select your device in tool bar and click on play button(Run application).
Ashvin Patel
  • 73
  • 6