设备不适用于“main.dart”配置，

Question

我使用 Android Studio 作为我编写 Flutter 的 IDE。在此之前，我能够创建 2 个项目，并且效果非常好。我不得不从 Github 克隆一个 repo。IDE 说要获取配置。我这样做了然后这发生了。

我已经安装了 sdk 。

我的安卓设备安卓版本是 7.0

颤振医生结果：

[?] Flutter (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18363.720], locale en-US)
    • Flutter version 1.12.13+hotfix.8 at C:\src\flutter\flutter
    • Framework revision 0b8abb4724 (6 weeks ago), 2020-02-11 11:44:36 -0800
    • Engine revision e1e6ced81d
    • Dart version 2.7.0

[X] Android toolchain - develop for Android devices
    X Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/setup/#android-setup for detailed instructions).
      If the Android SDK has been installed to a custom location, set ANDROID_HOME to that location.
      You may also want to add it to your PATH environment variable.


[?] Android Studio (version 3.6)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 44.0.2
    • Dart plugin version 192.7761
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)

[!] Android Studio
    • Android Studio at C:\Program
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
    X android-studio-dir = C:\Program
    X Android Studio not found at C:\Program
    • Try updating or re-installing Android Studio.
    • Consider removing your android-studio-dir setting by running:
      flutter config --android-studio-dir=

[!] VS Code
    • VS Code at C:\Users\Tamim Mostafa\AppData\Local\Programs\Microsoft VS Code
    X Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[!] Connected device
    ! No devices available

! Doctor found issues in 4 categories.

我还尝试将目录更改为没有空格的 using 文件夹。我将 Sdk 文件夹移动到 D:\Android\Sdk。扑医生-v：

[?] Flutter (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18363.720], locale en-US)
    • Flutter version 1.12.13+hotfix.8 at C:\src\flutter\flutter
    • Framework revision 0b8abb4724 (6 weeks ago), 2020-02-11 11:44:36 -0800
    • Engine revision e1e6ced81d
    • Dart version 2.7.0

[X] Android toolchain - develop for Android devices
    X ANDROID_HOME = D:\Android\Sdk
      but Android SDK not found at this location.

[?] Android Studio (version 3.6)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 44.0.2
    • Dart plugin version 192.7761
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)

[!] Android Studio
    • Android Studio at C:\Program
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
    X android-studio-dir = C:\Program
    X Android Studio not found at C:\Program
    • Try updating or re-installing Android Studio.
    • Consider removing your android-studio-dir setting by running:
      flutter config --android-studio-dir=

[!] VS Code
    • VS Code at C:\Users\Tamim Mostafa\AppData\Local\Programs\Microsoft VS Code
    X Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[!] Connected device
    ! No devices available

! Doctor found issues in 4 categories.

Answer 1

它解决了我的问题：

1. 确保在android studio中安装了Flutter插件，您可以从文件>设置>插件安装插件
2. 从 File > setting > Language & Framework > flutter 中选择 flutter SDK 路径。

Answer 2

我遇到了同样的问题，对我有用的是重新导入项目。

File > Close Project，转到项目目录并删除.idea文件夹。然后File > Open...重新打开项目。

打开Project Structure，您可以使用您拥有的设置项目的 SDK。

在此之后，我能够main.dart使用模拟器运行。

Answer 3

找了半天才发现Project其他人都看到了，估计是Android Studio版本更新了。我External Libraries在左侧面板和它下面找到了它，右键单击Android API (NN) Platform> Open Library Settings>Project下面Project Settings和右侧面板，更改 Android API。我有<No SDK>，看截图。

Answer 4

这似乎是问题所在：

[X] Android toolchain - develop for Android devices
-> ANDROID_HOME = D:\Android\Sdk but Android SDK not found at this location.

由于您说将 Android SDK 添加到 D 目录，因此您可以将D:\Android\sdk\tools和添加D:\Android\sdk\platform-tools到 PATH 环境变量中。这是将其添加到 Path 环境变量的方法：https : //docs.telerik.com/teststudio/features/test-runners/add-path-environment-variables

Answer 5

那是警告说“ Android SDK 位置不应包含空格”。中有一个空白字符Tamim Mustofa。

您可以将 sdk 文件夹移动到新文件夹D:\Android\Sdk，例如 ，其中路径中没有空格或其他空白字符。在Android Studio中更改Android Sdk Location地址。并ANDROID_HOME在环境变量：系统变量中添加变量。作为D:\Android\Sdk变量值