No devices found with name or id matching 'emulator-5554' even though the Flutter doctor is OK

Question

When I run my program on the emulator the console shows this:

No devices found with name or id matching 'emulator-5554'

The Flutter doctor is OK. How do I fix this?

C:\Users\athir>flutter doctor -v
[√] Flutter (Channel stable, 2.2.1, on Microsoft Windows [Version 10.0.19043.928], locale en- 
US)
• Flutter version 2.2.1 at C:\flutter
• Framework revision 02c026b03c (2 weeks ago), 2021-05-27 12:24:44 -0700
• Engine revision 0fdb562ac8
• Dart version 2.13.1

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at \Users\athir\AppData\Local\Android\Sdk
• Platform android-30, build-tools 30.0.3
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)
• All Android licenses accepted.

[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Android Studio
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin can be installed from:
   https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
   https://plugins.jetbrains.com/plugin/6351-dart
• android-studio-dir = C:\Program Files\Android\Android Studio
• Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)

[√] Connected device (3 available)
• sdk gphone x86 arm (mobile) • emulator-5554 • android-x86    • Android 11 (API 30) 
(emulator)
• Chrome (web)                • chrome        • web-javascript • Google Chrome 91.0.4472.101
• Edge (web)                  • edge          • web-javascript • Microsoft Edge 91.0.864.41

• No issues found!

Answer 1

I had a similar error just recently. My own exact error was "No devices found with name or id matching 0DE9E241-5554-4D27-BAE5-7839B1FB1206". For anyone who faces such an error, I realized it was due to a folder that I guess was generated by vscode. A folder called .vscode in the project folder, inside that folder includes a launch.json file. In there you'll find a "configurations" key that houses an array of objects, check for the key "deviceId" and its value in the array, if that value matches the id you got in your error, comment out the whole code in that file and try running your app again. That worked for me.