不知道是我代码问题还是版本问题
[✓] Flutter (Channel unknown, 1.22.6, on Linux, locale en_US.UTF-8)
• Flutter version 1.22.6 at /sdks/flutter
• Framework revision 9b2d32b605 (4 months ago), 2021-01-22 14:36:39 -0800
• Engine revision 2f0af37152
• Dart version 2.10.5
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
• Android SDK at /opt/android-sdk-linux
• Platform android-30, build-tools 30.0.2
• ANDROID_HOME = /opt/android-sdk-linux
• ANDROID_SDK_ROOT = /opt/android-sdk-linux
• Java binary at: /usr/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_265-8u265-b01-0ubuntu2~20.04-b01)
• All Android licenses accepted.
[!] Android Studio (not installed)
• Android Studio not found; download from
https://developer.android.com/studio/index.html (or visit
https://flutter.dev/docs/get-started/install/linux#android-setup for detailed instructions).
[!] Connected device
! No devices available
! Doctor found issues in 2 categories.