颤振式安装平台-反复安装工具

Question

我已经在windows-10上安装了flutter和android (没有android工作室)。成功地完成了安装，一切都很好，并且web中没有错误，但是当我运行flutter build apk时，它会抛出一些警告

 Building with sound null safety

Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01
Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01
Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01
Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01
Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01
Checking the license for package Android SDK Platform-Tools in C:\Users\ItzJVS\AppData\Local\android\cmdline-tools\tools\licenses
License for package Android SDK Platform-Tools accepted.
Preparing "Install Android SDK Platform-Tools (revision: 31.0.3)".
Warning: Package "com.android.repository.impl.generated.v1.RemotePackage@5f56b0a9" (platform-tools) should be installed in
"C:\Users\ItzJVS\AppData\Local\android\cmdline-tools\tools\platform-tools" but
it already exists.
Installing in "C:\Users\ItzJVS\AppData\Local\android\cmdline-tools\tools\platform-tools-2" instead.
Running Gradle task 'assembleRelease'...

它开始下载平台工具、构建工具和模拟器(如果已经存在，它将像platform-tools-2、build 2和模拟器-2一样一次又一次地下载)

我的flutter doctor -v是

[√] Flutter (Channel stable, 2.5.0, on Microsoft Windows [Version 10.0.17763.195], locale en-IN)
    • Flutter version 2.5.0 at C:\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 4cc385b4b8 (10 days ago), 2021-09-07 23:01:49 -0700
    • Engine revision f0826da7ef
    • Dart version 2.14.0

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at C:\Users\ItzJVS\AppData\Local\android\cmdline-tools\tools
    • Platform android-30, build-tools 29.0.2
    • ANDROID_HOME = C:\Users\ItzJVS\AppData\Local\android
    • Java binary at: C:\Program Files\Java\jdk1.8.0_301\bin\java.exe
    • Java version Java(TM) SE Runtime Environment (build 1.8.0_301-b09)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[!] 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 1.60.1)
    • VS Code at C:\Users\ItzJVS\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.26.0

[√] Connected device (1 available)
    • Chrome (web) • chrome • web-javascript • Google Chrome 93.0.4577.82

! Doctor found issues in 1 category.

I'm not getting what I'm doing wrong can some one help me to resolve this .. ThankYou.. 

Answer 1

显然，您只需要正确设置android文件结构。我制作了这个跟踪视频，显示了要遵循的步骤。视频

或者遵循以下步骤：

1. 安装flutter和java，并将主题添加到系统的环境变量中。
2. 直接到命令行工具并下载命令行工具&提取压缩文件到c：\ANDROID，将其添加到环境变量'ANDROID_SDK_ROOT'："c:\ANDROID-SDK"
3. 现在，在CMD "C:\ANDROID-SDK\cmdline-tools\bin"中打开以下路径
4. 运行命令sdkmanager.bat "cmdline-tools;latest" --sdk_root=../../
5. 现在将其添加到您的环境变量路径“C：\ANDROID\cmdline-tools\cmdline\bin”
6. 接下来打开CMD并安装build "sdkmanager.bat“build；30.0.3 "”
7. 然后是平台sdkmanager.bat "platforms;android-31"
8. 现在运行flutter config --android-sdk %ANDROID_SDK_ROOT%
9. 运行flutter doctor --android-licenses并接受许可证。
10. 现在转到您的项目运行flutter build apk

希望这对任何有同样问题的人都有帮助