C:\Users\JIJS>flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18362.657], locale ko-KR)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
X Android license status unknown.
Try re-installing or updating your Android SDK Manager.
See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed
instructions.
[√] Android Studio (version 3.6)
[√] VS Code (version 1.42.1)
[!] Connected device
! No devices available
! Doctor found issues in 2 categories.
해결책!! 엄청 해맸다.
https://github.com/flutter/flutter/issues/20976
- open Android Studio's SDK Manager
- go to the Android SDK tab
- under SDK Tools, uncheck Hide Obsolete Packages
- install Android SDK Tools (Obsolete)