Android Studio Dolphin | 2021.3.1 (Windows) cannot run/ install app on any devices

If you're experiencing issues with Android Studio Dolphin on Windows, specifically with running or installing apps on devices, you can try the following troubleshooting steps:

1. Check USB Connection: Ensure that your device is properly connected to your computer via USB. Verify that the USB cable is functioning correctly and that your device is recognized by your Windows system. You may need to enable USB debugging on your device and authorize the computer to access it.

2. Enable Developer Options: On your Android device, go to Settings -> About phone (or About device) -> tap on the Build number 7 times to enable Developer Options. Then, go to Settings -> Developer Options and enable USB debugging.

3. Verify ADB Installation: Android Studio relies on the Android Debug Bridge (ADB) to communicate with devices. Check that ADB is installed correctly and functioning properly. Open a command prompt or terminal and run the following command to see if the device is recognized:

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   adb devices
   
   

   If the device is listed, it means ADB is working correctly. If not, make sure you have the necessary drivers installed for your specific device or try reinstalling ADB.

4. Check Android SDK Configuration: Verify that Android SDK and the required platform tools are installed properly in Android Studio. Go to File -> Settings -> Appearance & Behavior -> System Settings -> Android SDK. Ensure that the necessary SDK components, including the Android Platform Tools, are installed and up to date.

5. Restart ADB Server: Sometimes, restarting the ADB server can resolve connection issues. In a command prompt or terminal, run the following commands:

   perlCopy code
   adb kill-server
   
   adb start-server
   
   

6. Invalidate Caches and Restart Android Studio: In Android Studio, go to File -> Invalidate Caches / Restart. This can help clear any cached data or configurations that might be causing issues.

7. Update Android Studio and SDK: Make sure you are using the latest version of Android Studio and have the latest SDK components installed. Check for updates within Android Studio and install any available updates.

8. Try Different Device or Emulator: If the issue persists, try connecting a different device or using an emulator to see if it is specific to your device or a general connectivity problem.

If none of the above steps resolve the issue, review the error messages or logs provided by Android Studio for more specific details about the problem. Updating device drivers, restarting your computer, or seeking assistance from the Android Studio or Android developer community may also help in troubleshooting device connection issues.