Exception: [!] Your app is using an unsupported Gradle project

Question

I am trying to run my existing flutter application and I am getting this exception. How can I solve this issue?

Exception: [!] Your app is using an unsupported Gradle project. To fix this problem, create a new project by running flutter create -t app <app-directory> and then move the dart code, assets and pubspec.yaml to the new project.

Here are my Flutter doctor results:

[✓] Flutter (Channel stable, v1.17.1, on Mac OS X 10.15.4 19E287, locale en-EE)
    • Flutter version 1.17.1 at /Users/varsik/Documents/flutterConfigurationFiles/flutter
    • Framework revision f7a6a7906b (2 weeks ago), 2020-05-12 18:39:00 -0700
    • Engine revision 6bc433c6b6
    • Dart version 2.8.2


[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at /Users/varsik/Library/Android/sdk
    • Platform android-29, build-tools 29.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.2.1, Build version 11B500
    • CocoaPods version 1.8.4

[✓] Android Studio (version 3.6)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 45.1.1
    • Dart plugin version 192.8052
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)

[✓] Connected device (1 available)
    • Pixel 3 XL • 8B8Y0VETV • android-arm64 • Android 10 (API 29)

• No issues found!

Solution

Maybe you removed a line from the

project/android/app/build.grade

Try adding this Piece of Code

apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

after the line

apply plugin: 'com.android.application'