Pada saat instalasi Flutter & menjalankan flutter doctor terdapat eror sbb:

softwareengineeringprasmul@Softwares-MacBook-Pro % flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 1.22.5, on Mac OS X 10.15.5 19F101 darwin-x64, locale en-ID)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 12.1)
[!] Android Studio (version 4.1)
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] VS Code (version 1.52.0)
[!] Connected device
    ! No devices available

Solusi:

Pastikan Anda sudah menginstal extension Flutter pada Android Studio

Kemudian, ketik command berikut pada terminal:

ln -s ~/Library/Application\ Support/Google/AndroidStudio4.1/plugins ~/Library/Application\ Support/AndroidStudio4.1

Setelah itu, ketik kembali flutter doctor pada terminal:

softwareengineeringprasmul@Softwares-MacBook-Pro FinalUPMSite % flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 1.22.5, on Mac OS X 10.15.5 19F101 darwin-x64, locale en-ID)
 
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 12.1)
[✓] Android Studio (version 4.1)
[✓] VS Code (version 1.52.0)
[!] Connected device
    ! No devices available

Bisa terlihat pada tampilan diatas bahwa Android Studio telah terdeteksi, namun masih ada masalah pada bagian connected devices –> No devices available. Untuk memecahkan masalah tersebut silahkan lihat pada postingan berikut: https://se.prasetiyamulya.ac.id/2020/12/13/flutter-doctor-no-devices-available/