F:\flutter\flutterWorkSpace\flutter_app_demo>flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 2.5.0, on Microsoft Windows [Version 10.0.18363.1556], locale zh-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
X cmdline-tools component is missing
r --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
X Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
[√] Chrome - develop for the web
[√] Android Studio (version 4.1)
[√] IntelliJ IDEA Ultimate Edition (version 2018.3)
[√] Connected device (2 available)
! Doctor found issues in 1 category.