In the previous article, we have installed Android Studio and Flutter software ontology on Ubuntu 19. Then run flutter doctor to help check whether the flutter operating environment meets the needs:
$ flutter doctor
Print information:
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.5.4-hotfix.2, on Linux, locale en_US.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.0)
[!] Android Studio (version 3.4)
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
[!] Connected device
! No devices available
! Doctor found issues in 2 categories.
This shows that we need to install Flutter and Dart plugins on Android Studio. This is relatively simple, search and download dart and flutter respectively in configure -> plugins.
After installing the plug-in, re-run Android Studio. Execute flutter doctor again
$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.5.4-hotfix.2, on Linux, locale en_US.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.0)
[✓] Android Studio (version 3.4)
[!] Connected device
! No devices available
! Doctor found issues in 1 category.
At this point, we are only one step away: plug in the Android phone...