我知道有很多类似的问题,但是其他解决方案都无法解决这个问题。这是flutter doctor -v
[√] Flutter (Channel stable, 1.20.4, on Microsoft Windows [Version 10.0.18362.1082], locale en-US)
• Flutter version 1.20.4 at C:\src\flutter
• Framework revision fba99f6cf9 (4 weeks ago), 2020-09-14 15:32:52 -0700
• Engine revision d1bc06f032
• Dart version 2.9.2
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
• Android SDK at C:\Users\Amish Raj\AppData\Local\Android\sdk
• Platform android-30, build-tools 30.0.2
• Java binary at: C:\Program Files\Java\jdk-14.0.1\bin\java
• Java version Java(TM) SE Runtime Environment (build 14.0.1+7)
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/docs/get-started/install/windows#android-setup for detailed instructions.
[!] 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/windows#android-setup for detailed instructions).
[√] VS Code (version 1.50.0)
• VS Code at C:\Users\Amish Raj\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.15.0
[!] Connected device
! No devices available
我已经安装了Android Studio最新版本并安装了Android SDK工具26.1.1