Flutter 升级失败解决
运行
flutter upgrade，提示：Unable to upgrade Flutter: no origin repository configured.
先用 flutter doctor 检测：
$ flutter doctor
╔════════════════════════════════════════════════════════════════════════════╗
║ A new version of Flutter is available! ║
║ ║
║ To update to the latest version, run "flutter upgrade". ║
╚════════════════════════════════════════════════════════════════════════════╝
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.17.1, on Microsoft Windows [Version 10.0.17763.1282], locale zh-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[√] Android Studio (version 3.5)
[√] VS Code (version 1.53.2)
[!] Proxy Configuration
! NO_PROXY is not set
[!] Connected device
! No devices available
! Doctor found issues in 3 categories.
然后 flutter upgrade 升级：
flutter upgrade
运行 flutter upgrade，结果提示升级失败：Unable to upgrade Flutter: no origin repository configured. Run 'git remote add origin https://github.com/flutter/flutter' in D:\Flutter_SDK ..
运行 flutter 以下命令可以解决问题：
flutter channel stable Switching to flutter channel 'stable'...
Upgrading Flutter from D:\Flutter_SDK...
Checking Dart SDK version...
Downloading Dart SDK from Flutter engine 2f0af3715217a0c2ada72c717d4ed9178d68f6ed...
Unzipping Dart SDK...
Building flutter tool...
Running pub upgrade...
Upgrading engine...
Flutter assets will be downloaded from https://storage.flutter-io.cn/. Make sure you trust this source!
Downloading Material fonts... 1.8s
Downloading Android Maven dependencies... 213.4s (!)
Downloading android-arm-profile/windows-x64 tools... 1.5s
Downloading android-arm-release/windows-x64 tools... 1.3s
Downloading android-arm64-profile/windows-x64 tools... 1.6s
Downloading android-arm64-release/windows-x64 tools... 1.4s
Downloading android-x64-profile/windows-x64 tools... 1.6s
Downloading android-x64-release/windows-x64 tools... 1.4s
Downloading android-x86 tools... 17.9s
Downloading android-x64 tools... 18.1s
Downloading android-arm tools... 8.2s
Downloading android-arm-profile tools... 4.2s
Downloading android-arm-release tools... 3.2s
Downloading android-arm64 tools... 8.8s
Downloading android-arm64-profile tools... 4.9s
Downloading android-arm64-release tools... 3.8s
Downloading android-x64-profile tools... 4.8s
Downloading android-x64-release tools... 3.8s
Downloading android-x86-jit-release tools... 6.0s
Downloading package sky_engine... 1.1s
Downloading flutter_patched_sdk tools... 8.9s
Downloading flutter_patched_sdk_product tools... 8.9s
Downloading windows-x64 tools... 21.9s
Downloading windows-x64/font-subset tools... 2.3s
Flutter 1.22.6 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 9b2d32b605 (5 weeks ago) • 2021-01-22 14:36:39 -0800
Engine • revision 2f0af37152
Tools • Dart 2.10.5
Running flutter doctor...
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 1.22.6, on Microsoft Windows [Version 10.0.17763.1282], locale zh-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[√] Android Studio (version 3.5)
[√] VS Code (version 1.53.2)
[!] Proxy Configuration
! NO_PROXY is not set
[!] Connected device
! No devices available
! Doctor found issues in 3 categories.
╔════════════════════════════════════════════════════════════════════════════╗
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