Android Studio flutter and dart plugins not recognized by flutter doctor , but plugins are installed

change channel master to dev. then upgrade.

flutter channel dev
flutter channel upgrade

try again

flutter doctor

Note: I think it's Android Studio 4.1 issue...

This is the Step install the flutter in the Android Studio:

1.Go to Settings->Plugin->Install Flutter and Dart->Restart Android Studio
2.Download  the flutter sdk
3.In the environment Variable->User Variable->
ANDROID_HOME F:\AndroidSDK(Paste your Android SDK Path)
Path:F:\AndroidSDk;(Paste your Android SDK Path)
     c:\ProgramFiles\Java\jdk\1.8.0_20\bin;(Paste your jdk Path)
     c:\Users\Desktop\flutter\bin;(Paste your Flutter SDK Path)
4.Git install at c:\ProgramFiles\Git
5.Open Gitbash
$flutter doctor
$flutter doctor --android-licenses
Accept the licences Y Y Y Y
Make sure your Device should be connected your PC   

The problem is with the stable version i guess

step 1 : run> flutter channel dev

step2 : run> flutter channel upgrade

step3 : run > flutter config --android-studio-dir="C:\Program Files\Android\Android Studio"

this worked for me using Android studio version 4.1