android studio - Dart SDK is not configured

Question

I installed Flutter and set up Android Studio. Then I cloned an example of flutter on GitHub (https://github.com/flutter/flutter) and launched it in Android Studio, but it warns me "Dart SDK is not configured", this happened to my co-worker as well. But if I create a new project in Android Studio, no problem at all.

What I have done:

1. Installed Flutter

2. Installed Android Studio, along with Flutter plugin including Dart plugin

3. Flutter run in command line works fine, all five tests passed. (See below)

[?] 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)

Last week, I can run their example thru command line (in that dir),

flutter run 

but now I it shows some errors with 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.

Answer 1

I had the same problem after importing a flutter project from git. These are the steps to solve the problem.

1. File->Settings->Language & Framework->Flutter
2. Choose flutter SDK path: the first time we install flutter, we choose the location where the flutter should be installed. Choose this location.
3. Click OK and the android studio will refresh. Carry on if the problem is solved.
4. If you are still stuck with the error.
5. Goto this link and install Dart.
6. Goto the same place in settings, ..Language & Framework->Dart and chose the SDK location.

This solved the issues for me.