Flutter App stuck at “Running Gradle task 'assembleDebug'… ”

Question

When I run the app it get stuck

Launching lib\\main.dart on Lenovo A319 in debug mode...
Running Gradle task \'assembleDebug\'...
(This is taking an unexpec         


        

Answer 1

In Android Studio:

Tools -> Flutter -> Flutter clean.

After that just run the app

Answer 2

Had the same issue because of the wrong compileSdkVersion in the build.gradle file. Working fine now.

Answer 3

This worked for me:

C:\Users<user>\AndroidStudioProjects<flutter_app>\android> gradlew clean C:\Users<user>\AndroidStudioProjects<flutter_app>\android> gradlew build

Now run it, for initial build

“Running Gradle task 'assembleDebug'… ”

will take 10-12 mins after that it will be good to go.

Answer 4

I solved the issue by reinstalling SDK Platform on Android studio for Android API 29

Tools->SDK Manager-SDK Platform

Next go to

Android > app > build.gradle

Make sure you also change

compileSdkVersion 29

targetSdkVersion 29

Be patient, it take longer for the first launch...But, not take forever like before.

good luck

Answer 5

For creating an apk for Android in Flutter this issue sometimes happens. I had the luck of facing this issue as well. Here are the few ways it can be solved:

1. Due to androidX

If you followed recommended route from here: https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility

Try this:

Check with steps in “not recommended” way in above tutorial if every listed files is same as in your project, especially : in root/android/gradle/wrapper/gradle-wrapper.properties set distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip in root/android/build.gradle, set dependencies { classpath 'com.android.tools.build:gradle:3.3.2' }

check if root/android/app/build.gradle SDK version is set to minimum 28 for: compileSdkVersion 28 and targetSdkVersion 28 Thank you.

Answer 6

I fixed the issue by switching off my antivirus while running my project in the terminal

To run your project in a terminal simply type --> flutter run