我安装了Flutter并设置了Android Studio。然后我在GitHub (https://github.com/flutter/flutter)上克隆了一个flutter的例子,并在Android Studio中启动它,但它警告我“Dart SDK未配置”,这也发生在我的同事身上。但如果我在Android Studio中创建一个新项目,就完全没有问题。

我所做的:

安装了颤振 安装了Android Studio,以及Flutter插件,包括Dart插件 在命令行中颤振运行正常,所有五个测试都通过了。(见下文)

[✓] Flutter (on Mac OS X 10.13.3 17D47, locale en-US, channel dev) • Flutter version 0.0.22 at /Users/katelyn/flutter • Framework revision 3001b3307d (7 days ago), 2018-01-30 11:37:15 -0800 • Engine revision 8f2d72b183 • Tools Dart version 2.0.0-dev.16.0 • Engine Dart version 2.0.0-edge.7af4db0ea091dddca6b2da851e6dda8d7f9467e8 [✓] Android toolchain - develop for Android devices (Android SDK 27.0.3) • Android SDK at /Users/katelyn/Library/Android/sdk • Android NDK location not configured (optional; useful for native profiling support) • Platform android-27, build-tools 27.0.3 • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08) [✓] iOS toolchain - develop for iOS devices (Xcode 9.2) • Xcode at /Applications/Xcode.app/Contents/Developer • Xcode 9.2, Build version 9C40b • ios-deploy 1.9.2 • CocoaPods version 1.4.0 [✓] Android Studio (version 3.0) • Android Studio at /Applications/Android Studio.app/Contents • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08) [✓] Connected devices • Android SDK built for x86 • emulator-5554 • android-x86 • Android 7.1.1 (API 25) (emulator)

上周,我可以通过命令行运行他们的例子(在那个目录下),

flutter run 

但现在我显示一些错误与Gradle。

Launching lib/main.dart on Android SDK built for x86 in debug mode... Initializing gradle... 0.7s Resolving dependencies... Error running Gradle: Exit code 1 from: /Users/katelyn/AndroidStudioProjects/flutter/examples/flutter_gallery/android/gradlew app:properties: FAILURE: Build failed with an exception. Where: Build file '/Users/katelyn/AndroidStudioProjects/flutter/examples/flutter_gallery/android/app/build.gradle' line: 20 What went wrong: A problem occurred evaluating project ':app'. 3 Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Get more help at https://help.gradle.org BUILD FAILED in 0s Please review your Gradle project setup in the android/ folder.


当前回答

一个更快的方法…

打开android studio..进入文件菜单....在那里你会发现无效缓存/重新启动..点击它,并响应弹出的无效和重新启动

您的android工作室将重新启动。一切都完成了。

这对我真的很有帮助。

其他回答

最近,当我在Android Studio上运行flutter项目时,我在MAC设备上遇到了这个问题

解决这个问题的步骤。

在MAC os上使用brew安装dart (https://dart.dev/get-dart)

酿造tap dart-lang/dart 冲泡安装省道

运行

酿造信息镖

它会给你这样的输出

请注意Dart SDK的路径:/usr/local/opt/ Dart /libexec

在Android Studio Settings中粘贴Dart SDK路径

类似于上面,我从我用flutter创建的项目(不是克隆的)中获得了dart sdk路径,通过转到Android Studio首选项|语言和框架| dart。然后类似地,在克隆的项目中,进入Preferences | Languages & Frameworks | Dart和“Enable Dart support for the project…”,然后输入保存的路径。

上面的大多数选项已经展示了如何在Windows系统中配置Dart(如果你已经安装了Dart, Flutter Doctor显示一切正常)。

在MacOS上,此选项可在Android Studio > Preferences ('Command' + ',')下使用

在左侧窗格中找到Languages and Frameworks / Dart。 勾选“启用Dart支持”并找到Dart SDK。它将在您的Flutter SDK安装目录'/ Flutter -安装-目录/ Flutter /bin/cache/dart-sdk'内。输入这个将自动填充下一行的dart版本,指出框架被选中。 选中框启用Dart支持以下模块为您所需的项目。

单击Apply。单击Ok。

如上所述,这将解决大多数用例。如果错误仍然存在,可以执行“File > Invalidate Caches/Restart”。

mac:

点击顶部的Android Studio ->点击首选项->语言和框架

->选择“颤振”

->浏览Flutter SDK路径下载链接["https://flutter.dev/docs/get-started/install/macos"]

->单击“确定” 享受! !

doctor和-v连用可能会有帮助

flutter doctor -v

对我来说,结果是

 ...
Flutter version 2.0.5 at /usr/local/Caskroom/flutter/2.0.5/flutter
...

省道路径可以设置为

/usr/local/Caskroom/flutter/2.0.5/flutter/bin/cache/dart-sdk