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 unexpectedly long time.)

It never initialize Gradle nor the dependencies

`(This is taking an unexpectedly long time.)` does it mean after that time it gives back a certain result? if yes, what's the result? — Gratien Asimbahwe, Dec 29 '19 at 02:46
Are you connected to the internet? If so, please check your internet connection--assuming dependencies are not yet cached locally on your machine. Also can you please try sharing the logs after running `flutter run -v`. Lastly, you can try stopping an existing gradle daemon via `cd android && ./gradlew --stop` then run the `flutter run -v` again. — Joshua de Guzman, Dec 29 '19 at 05:12
Hi, after waiting nearly waiting 10 mins [Log](https://pastebin.com/A4hUt9rb) the app doesn't show what it suppose to show — learner, Dec 29 '19 at 15:02
The information you provided is not enough to know the cause you of the delay. You should provide the output of `flutter doctor`, this will narrow the bug search area. Does it do that will a specific app or all your apps? — Loïc Fonkam, Dec 29 '19 at 08:30
@LoïcFonkam everything is fine with flutter doctor, my app is also stuck with the same error, up to 20+ minutes, then it run successfully if do want to know why does this happen — Azhar Ali, May 08 '21 at 10:39

Aldy · Answer 1 · 2022-07-02T19:11:02.487

221

Here is solution in my case.

Open your flutter Project directory.
Change directory to android directory in your flutter project directory cd android
clean gradle ./gradlew clean
Build gradle ./gradlew build or you can combine both commands with just ./gradlew clean build
Now run your flutter project. If you use vscode, press F5. First time gradle running assembleDebug will take time.

PS: Delete gradle in case of all that steps don't work

edited Jul 02 '22 at 19:11

answered Mar 15 '20 at 08:53

Aldy

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Not sure if it will work, but deleting a folder with over 80.000 files feels incredibly pleasant. Definitely ~/.gradle went out of hand – JesusIniesta Jun 17 '20 at 13:09
Hi. I edited the order of deleting gradle from main flow. Because most of the case solved by following step 2-6. Step 1 (deleting gradle) is optional in case of step 2 -6 not worked. – Aldy Jun 17 '20 at 14:26
it seems running but i have code error in my project – kreamik Oct 07 '20 at 10:11
after running gradlew.bat clean build from the .gradle directory it showed the download progress, 6minutes in and still downloading jar files, thanks for the answer – Ameer Adel Nov 24 '20 at 10:45
This gave me error `Could not initialize class org.codehaus.groovy.reflection.ReflectionCache`, which I resolved with the help of [this answer](https://stackoverflow.com/a/64637310/6422750). – Theta Mar 03 '21 at 00:39
Is there any way, automatically downloading files from fast mirror (while it is downloading) – Md Rashedul Islam Sep 23 '21 at 17:31
This answer worked for me in that I discovered I didn't have my Java classpath set when running `gradlew clean`. – jvndev Sep 30 '21 at 07:43
Alright this worked fine for me but is there a way to fix this for every new Flutter project? – Usman Sabuwala Nov 27 '21 at 10:05
Getting No Such File or Directory – Jaimin Modi Jul 26 '22 at 05:08
why is it so slow ? It tales me 5 minutes for a project with 3 files... – Zhar Jul 31 '22 at 10:21
It works. FYI, whats helping is when you run `./gradlew clean build`, it gave us informations about the problem in android side, so you can fix it. In my case, i have to change SDK Version, due to library i installed. But, it took > 20 minutes for me – Muhammad Faisal Oct 07 '22 at 10:13
4

Now I got stuck too when running gradle clean. Lmfao. – zidniryi Nov 10 '22 at 15:08
step 5 is the best. always work for me – Waqas K Mar 15 '23 at 01:35

Sébastien · Answer 2 · 2022-02-22T15:32:29.390

137

flutter run -v showed that I was stuck on

Downloading https://services.gradle.org/distributions/gradle-5.6.2-all.zip

This was going to take hours, as for some reason the download speed was ~10kB/s on a decent DSL connection.

Solution:

Interrupt gradle build
Download the required gradle zip from a fast mirror. e.g. https://distfiles.macports.org/gradle/gradle-5.6.2-all.zip
Copy gradle-5.6.2-all.zip to C:\Users\ <MyUsername>\.gradle\wrapper\dists\gradle-5.6.2-all\9st6wgf78h16so49nn74lgtbb (of course the last folder will have a different name on your PC)
flutter run and voilà.

edited Feb 22 '22 at 15:32

answered Apr 28 '20 at 20:21

Sébastien

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I was lazy to change anything, waited forever to see if it's gonna work and eventually it worked. So I guess it actually works, but as you said download speed is super slow. – Serjuice Sep 08 '20 at 07:00
10

By using this command I can see that the problem comes from downloading files.. It could be a good idea for flutter team to increase the default logging level, when the app is launched from Android Studio, the user has no clue about what's going on! Thanks for the tip :-) – funder7 Dec 15 '20 at 12:52
gradle got me every single time. Whenever I do new setup... I have to do this. – omer Feb 09 '21 at 17:08
11

flutter run -v this command made the day. You again proved Flutter has many built-in great debugging tools that we forgot to use – Varun Kumar Medam May 16 '21 at 18:57
after flutter run -v i noticed i was stuck because of invalid app id for admob in mainfest file , Thanks – Bijay Poudel Oct 15 '22 at 12:57

Gergö Marton-Szücs · Accepted Answer · 2020-01-26T17:40:46.777

65

In my case, Windows Firewall was causing this problem. After I disabled it temporarily the problem was gone. Worth giving it a try. Good luck!

edited Jan 26 '20 at 17:40

answered Jan 26 '20 at 17:27

Gergö Marton-Szücs

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I can't believe this but this is true for Windows 10 – Dika Dec 29 '20 at 14:07
I had the same problem with Avast Antivirus – Juan Antonio Tubío Feb 13 '21 at 21:12
2

Even this is true for Windows 11, too! – autopilot Aug 14 '21 at 09:35
In my case it was Acronis blocking it! – Petro Apr 05 '22 at 18:00
Mine too, how do I permanently permit it through firewall? – NightStorm Jun 24 '22 at 16:36
does anyone know if this is this also the case for Mac OS? – Cedric Dec 23 '22 at 14:29

score 20 · Answer 4 · answered Apr 21 '20 at 04:34

If you are on Windows: try adding firewall exceptions to your Android Studio.

Go to:

Control Panel\System and Security\Windows Defender Firewall\Allowed apps
Hit the button:

Allow another app
Add your new firewall exceptions:

studio.exe and studio64.exe

I hope this can be useful for you too.

score 18 · Answer 5 · answered Sep 16 '20 at 13:02

18

If Running Gradle task assembledebug is taking unexpectedly long time, try updating Gradle in your project. (Downloading latest zip file)

You can follow steps in this answer.

Or try by:

Open a project in Android Studio
Right-click on android in Projects Panel
Go down to Flutter and click on the 'Open Android module in Android Studio'.

(See screenshot for reference)

This should open the project as an Android Project.

Now, click on 'gradle' in the right panel.
Next, click on 'Execute Gradle Task' icon

This should open a 'Run Anything' window.

Now, Run the command gradlew clean
and, then run gradlew build
If prompted by Android Studio to 'Update Gradle Plugin', do that.

The update would download the required .zip files. And, your apps should work fine after that.

answered Sep 16 '20 at 13:02

Aditya Thakur

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"3. Go down to Flutter and click on the 'Open Android module in Android Studio' "But my ```Flutter``` is disabled. In another flutter project which can run sucessful, the ```Flutter``` is enabled. Do you know why? – Krahmal Dec 28 '21 at 03:58
It did show Flutter disabled in certain cases. In that instance, you can instead use the terminal to do this as mentioned in the answer: https://stackoverflow.com/a/60691179/11690853 – Aditya Thakur Dec 29 '21 at 04:07
Thank you. And I solved the problem by upgrade the ```compileSdkVersion``` to 31. The ```flutter``` is still disabled but it just doesn't matter. – Krahmal Dec 29 '21 at 05:10

score 10 · Answer 6 · answered Feb 28 '20 at 12:10

I am using VS Code on Ubuntu 18.04

For me it was a background download of the appropriate android sdk build tools for my connected device. Running flutter run -v showed that it was downloading android SDK build tools which usually take some time. Once it was done, the flutter app compiled and ran successfully.

Solution

Ensure you have installed android sdk tools and added them to the environment path. I assume you have downloaded android sdk tools.
Ensure you have installed gradle and added it to the path
Ensure you have installed latest dart and flutter sdks

For no 1 and 2 please refer to this post:

Setting up flutter without Android studio

score 6 · Answer 7 · edited Aug 29 '20 at 18:24

6

For me what worked was clean wipe the emulator data by AVD Manager

edited Aug 29 '20 at 18:24

Suraj Rao

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answered Aug 29 '20 at 18:19

João Paulo S. Araujo

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This was the only solution in the whole thread that worked for me! – miguel alves miguel May 26 '21 at 19:19

Paul Parker · Answer 8 · 2020-03-01T22:39:20.713

5

There were two reasons for me on Archlinux:

I needed to unset TERM which was set to xterm-256color (reference).
For some reason, flutter stable was not working for me; so I switched to master with: flutter channel master && flutter upgrade. I'll be able to switch back to flutter stable when the fix in master makes its way into stable (reference).

edited Mar 01 '20 at 22:39

answered Feb 28 '20 at 07:31

Paul Parker

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Thank you so much! I'm also on arch and have been trying to understand why it isn't working for 1½ day now. – Jonas Andersen Feb 29 '20 at 08:50

score 5 · Answer 9 · answered Aug 23 '20 at 09:32

This worked for me.I got an issue with license acceptance. First you need to go through the flutter directory and then run the command

C:\Users\thrishool\flutterProjects\flutter>flutter doctor

Then it will display if everything is fine or not.I got an issue that, I didnot accept all the licenses.So you need to accept them all.Now type this in cmd

C:\Users\thrishool\flutterProjects\flutter>flutter doctor --android-licenses

Accept all the licenses and you are good to go.

score 4 · Answer 10 · answered Apr 25 '20 at 21:36

4

I used the command "flutter clean" in my project and it returned to work perfectly, please try. Igual a imagem

flutter clean

answered Apr 25 '20 at 21:36

Osvaldo Vb

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Upulie Han · Answer 11 · 2021-11-11T17:55:14.733

4

For me simply the process took too much time. It kept running for about 10 mins and finally the app started running.

edited Nov 11 '21 at 17:55

answered May 26 '21 at 10:41

Upulie Han

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Indeed, mine took nearly 15 min or so – William Le Nov 10 '21 at 15:56

score 3 · Answer 12 · answered Jan 07 '20 at 06:41

This is likely one of number of issues and some of the recommended troubleshooting can be found here.

Check that you are building against an Android sdk that you have installed... in your build.gradle file check the compileSdkVersion.
You can try uninstalling and reinstalling the relevant SDK.
Some users have reported that they had to resintall Dart.

Without a little more information basic troubleshooting is the best we can offer sorry.

Good luck.

score 3 · Answer 13 · answered Feb 12 '20 at 06:36

3

This problem occurred on my system because of the Zen Kernel.

I installed the Linux-LTS kernel and started system using this.

Then my project backed to compile again.

answered Feb 12 '20 at 06:36

btd1337

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score 2 · Answer 14 · answered Jan 18 '20 at 08:04

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.

score 2 · Answer 15 · answered May 17 '20 at 06:29

2

In Android Studio:

Tools -> Flutter -> Flutter clean.

After that just run the app

answered May 17 '20 at 06:29

Alex Reye

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score 2 · Answer 16 · answered Sep 14 '20 at 09:42

I stumbled on this problem when I was running my app without debugging it. Theres two option

Start Debugging
Run without Debugging

I was doing the second option the whole time which got me stuck in that running graddle loop. I fixed my problem with the first option.

score 2 · Answer 17 · answered Jan 28 '23 at 14:35

1: If it is the first launch, please be patient since it will download all gradle files for the first time.

2: To know if it really stuck, take help from the task manager in windows or the activity monitor on Mac, and check if the process is really using some CPU or network or not. If not, it is stuck. If it is using some resources, please be patient then (it should take ~5-40 minutes normally, even if you have slower internet).

3: If it is really suck, stop the process and run ./gradlew clean before building it next time.

score 1 · Answer 18 · answered Feb 21 '20 at 02:48

1

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

answered Feb 21 '20 at 02:48

Alex

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score 1 · Answer 19 · answered Mar 16 '20 at 11:13

1

In my case I forgot to download Google Web Driver. It’s running once I downloaded Google Web Driver.

answered Mar 16 '20 at 11:13

JustCodeNinja

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score 1 · Answer 20 · answered Mar 21 '20 at 19:18

It is taking time on windows 10 as the Android studio needs firewall permission to connect to the device(AVD). There can be another reason that you don't have downloaded full Android SDK on your machine.
To check the issue simply run the command on your terminal/cmd/PowerShell command tool.

flutter doctorflutter doctor

check if SDK is installed or not. Try to install and accept license using the following command

flutter doctor --android-licenses

If this doesn't resolve your problem then go to android studio and Open your Android Studio,

File-> settings->System settings(left tab) ->Android SDK ,

go to SDK Tool section in that page,

untick hide obsolete packages,

select Android SDL tools(obsolete) and press apply also install other useful tools according to your convenience.

score 1 · Answer 21 · answered Mar 28 '20 at 00:21

1

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

Occurs with import of Firestore.

answered Mar 28 '20 at 00:21

Christian Dressler

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score 1 · Answer 22 · answered Apr 25 '20 at 14:48

1

In my case the Android Gradle Plugin Version was not updated to any version at all. So i updated it by right clicking on my project folder, clicked "Open Module Settings" and updated gradle plugin version accordingly.

answered Apr 25 '20 at 14:48

Rishabh

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score 1 · Answer 23 · edited May 15 '20 at 12:21

1

In my case, I need to update Android SDK built-tools.

Open in Android studio Tools->SDK Manager-SDK tools. Mark Android SDK Built-Tools, press Apply, wait for the update. After updated, press Apply and try to run.

edited May 15 '20 at 12:21

Muhammad Dyas Yaskur

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answered May 15 '20 at 11:05

Oleksii Khoroshun

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score 1 · Answer 24 · answered Jun 26 '20 at 13:05

1

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

answered Jun 26 '20 at 13:05

Dayo Jaiye

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score 1 · Answer 25 · answered Jul 03 '20 at 04:53

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.

score 1 · Answer 26 · answered Aug 17 '20 at 11:15

Download the required gradle zip from a fast mirror: https://distfiles.macports.org/gradle/gradle-5.6.2-all.zip
Copy gradle-5.6.2-all.zip to C:\Users
.gradle\wrapper\dists\gradle-5.6.2-all\9st6wgf78h16so49nn74lgtbb

If this does not work, go to android studio's terminal then run:- flutter run.

See what SDK platform it's asking you. like SDK API 28, 29, or 30. Then goto SDK manager and install the required SDK API. Then restart android studio.

It will work perfectly fine!!

score 1 · Answer 27 · answered Jan 02 '21 at 15:46

1

The same problem occurred on my mac in Android Studio 4.1, unfortunately, I forgot to install Java on my machine, try installing Java.

answered Jan 02 '21 at 15:46

Eyayu Tefera

771
9
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And don't forget to set JAVA_HOME environment variable, this happened to me – Ignacior Feb 04 '22 at 16:20

score 1 · Answer 28 · answered Mar 14 '21 at 05:27

nothing was working for me

I do update the flutter SDK & update all the dependencies to the latest version. after that, I open the android module as a project in android studio. It downloads some files. after completion, I do clean the project using Build->clean Project & update the Gradle version.

After that, I again open the flutter project and run the app. It's working now.... :)

score 1 · Answer 29 · answered May 15 '21 at 15:10

This might also be due to developers permission, if you will be using any package which requires devices permission lets say url_launcher and you haven't given permission for that it wont run. Solution for windows is that just run ms-settings:developers this in your command prompt/ powershell and enable for developers option and then it will work fine. and if that doesnt also works then just run flutter clean and flutter create . it will work.

score 0 · Answer 30 · answered May 03 '20 at 03:29

How are you !,

After many attempts, nothing they recommended worked for me.

My problem was that I had * .dart files with many lines of code to perform SQL create and insert operations initially in SQLite, I removed those 4072 lines of operations, the file was reduced in size and I no longer had to compile a very code file long, instead, I preloaded the database into assets, and it worked flawlessly! ..

The message that the operation is taking a long time no longer appears, I hope it serves you.

Before, when long file size

After, without SQL code operations

score 0 · Answer 31 · answered May 30 '20 at 00:44

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

score 0 · Answer 32 · answered Jun 08 '20 at 16:35

With my LG G6 I have the same issue. It looks like the new versions of adb added some compatibility issues with some LG phones.

Downgrading to platform-tools version 28.0.0 solved the problem.

References:

https://superuser.com/questions/1357708/android-adb-logcat-works-only-on-shell/1357929#1357929

https://github.com/flutter/flutter/issues/18889#issuecomment-421432066

score 0 · Answer 33 · answered Jun 23 '20 at 12:30

Finally i fixed it. The problem is mostly due to android SDK or gradle built tool

There are different ways you can try to fix it. way 1. check whether google drivers are installed . you can find them in sdk manager of the android studio

way 2. flutter doctor -v flutter doctor --android-licenses (#this will check whether all the licenses of android are accepted)

way 3. flutter clean;flutter build apk
flutter run ( In the start it will take time for assembledeubg so kindly be patient for 7 to 10 mins)

way 4. If this also do not work flutter clean flutter run (be patient and finally after 5 to 10 min your flutter code will run on the emulator)

Hope these solutions work for you, If not reply me back.

score 0 · Answer 34 · answered Jul 01 '20 at 07:11

0

In my case installing JDK solved the problem.

macOS Catlina v10.15.4

answered Jul 01 '20 at 07:11

Mamad Farrahi

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score 0 · Answer 35 · answered Jul 10 '20 at 18:02

0

Have you tried that from cli ?

flutter devices

flutter run

https://flutter.dev/docs/get-started/test-drive?tab=terminal

In a mac environment, the building process finished in 140s.

answered Jul 10 '20 at 18:02

grape100

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score 0 · Answer 36 · edited Aug 06 '20 at 04:05

0

do flutter clean first then copy your project folder somewhere else close your project and open same project which is copied diffrent location. thats it !!

edited Aug 06 '20 at 04:05

krylov123

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answered Aug 05 '20 at 13:41

Chetan Dongarsane

1

score 0 · Answer 37 · answered Aug 17 '20 at 17:38

If you already opened a project and create another new project, make sure that you update the Gradle file based on the already runnable project version. In my case, I already installed Gradle 5.6.4 on a previous project and when I create a new project, it was 5.6.2 in the Gradle wrapper file. So I updated it.

score 0 · Answer 38 · answered Oct 30 '20 at 08:43

0

If Running Gradle task assembledebug is taking unexpectedly long time and if its not working even after checking the solutions mentioned in this article.

Just go and create new virtual device in AVD Manager. I hope this will definitely work for you.

answered Oct 30 '20 at 08:43

Justin

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score 0 · Answer 39 · answered Dec 19 '20 at 21:33

0

In my case, the issue was, project_path contained "space".

Example:

~/New Folder/myProject

Check if you have this issue.

answered Dec 19 '20 at 21:33

Ashiqur Rahman Nayeem

17
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score 0 · Answer 40 · answered Jan 12 '21 at 11:02

0

the problem is solved using following:

in android studio tools--> sdk Manager --> android sdk--> sdk platforms. dowload android sdk platform 28

now re-run ur project

answered Jan 12 '21 at 11:02

Yash Zade

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score 0 · Answer 41 · answered May 21 '21 at 10:57

0

I fixed this with upgrading flutter version from 2.0.5 to 2.2.0.

answered May 21 '21 at 10:57

bounxye

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score 0 · Answer 42 · answered Oct 14 '21 at 15:25

0

Can run the flutter app in profile / release mode to launch the app quickly. Note: We suppose to relax the hot reload. mode details

answered Oct 14 '21 at 15:25

SenthilVelan Shanmugam

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score 0 · Answer 43 · answered Dec 05 '21 at 09:23

if u are using windows 10, open your project in the terminal, and write these commands:

cd android
gradlew clean
gradlew build

then run the project.

Note: if u face a problem like no path for JAVA_HOME so set this path C:\Program Files\Android\Android Studio\jre in the environment variable. and open project structure in android studio and set the same path in JDK path.

score 0 · Answer 44 · answered Mar 27 '22 at 10:46

0

This solution should be working for some cases:

1 - Download Google Web Driver in Android SDK.

2 - Update Dart And Flutter in IntelliJ Idea or Android Studio or VS Code plugin.

3 - Run again.

answered Mar 27 '22 at 10:46

Viroth

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score 0 · Answer 45 · answered Apr 18 '22 at 13:32

I had the same challenge, meanwhile, doing flutter clean, flutter doctor, download gradle didn't help me and my issue stayed again. Finally the bellow steps rescued me from this trap.

1)Create a new flutter project(File--> new flutter project)
2)Transfer Lib, assets, font, pubspec.yaml, pubspec.lock 
3)pub update in pubspec.yaml of new project
4) change the kotlin version to latest version like 1.5.10 in android/build.gradle path in new project.

At the end try to rebuild your project and solve the other tiny problems which maybe occur. For instance, in my project the mentioned steps help me precisely.

score 0 · Answer 46 · answered Jun 15 '22 at 17:36

0

Had this issue today, every solution I found didn't work. In my case, I had to update Windows, after installing every update they listed and then restarting pc, the problem disappeared.

answered Jun 15 '22 at 17:36

Szomti

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score 0 · Answer 47 · answered Jun 22 '22 at 01:30

I had the same issue for almost half a day, so what I did :

Go to my Home directory, enabled show hidden folders.
Delete the .gradle folder.
Went back to Android studio, opened the terminal, and ran the flutter run command.
After it completes, the app will be launched on your connected device.

Note: Make sure you have a strong internet connection because gradle files are going to be re-downloaded.

Thank you, hope this one helps

score 0 · Answer 48 · answered Oct 17 '22 at 12:28

0

for me, I just changed my proxy, while I have problem on sync gradle files on my country.

answered Oct 17 '22 at 12:28

moshen pejam

43
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score 0 · Answer 49 · answered Jan 29 '23 at 06:21

0

In my case I just restart my computer and it's fixed. Probably it's happening because of lack of some files while launching the app.

answered Jan 29 '23 at 06:21

D. S. Shatner

40
1
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score 0 · Answer 50 · answered Mar 10 '23 at 13:56

I cannot edit other answeres so here is mine on top of answere from @Sébastien.

first use flutter run -v or of you are using Android Studio, edit project configurations and add -v to the Additional run args

after that running project shows that in my case gradle downloading is taking too much time, so download it directly and unzip it in: C:\Users\ <MyUsername>\.gradle\wrapper\dists\gradle-5.6.2-all\9st6wgf78h16so49nn74lgtbb

some notes about this address:

gradle folder should be the same name as the file you downloaded so if it ends in bin instead of all, use that
the hash at the end is created by default when graddle wrapper starts the download but these are some common ones on my system:

gradle-7.1-bin:4pslxx9lrxt5svtz5wbnb6tkz

gradle-7.2.1-all:2hmet7i3y4pg69r05wkkofsqn

gradle-7.3.3-all:4295vidhdd9hd3gbjyw1xqxpo

gradle-7.5-all:6qsw290k5lz422uaf8jf6m7co

gradle-7.5.1-all:1ehga6e77gqps5uk2kc5kf1vc

NOTE inside the said folder there is a file ended in .part, that is the partially downloaded gradle file, if it is there gradlew will try to complete it, so change the .part to .ok, ex: gradle-7.5-all.zip.part -> gradle-7.5-all.zip.ok you can also delete it and use an empty file to save some space

score -1 · Answer 51 · answered Jun 07 '20 at 03:12

-1

Just connect with internet then disable your windows defender/firewall. It works for me.

answered Jun 07 '20 at 03:12

Bauroziq

951
9
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score -1 · Answer 52 · answered Sep 06 '22 at 06:39

-1

On android studio go to file/invalidate caches/

For me this works

answered Sep 06 '22 at 06:39

miladkhalighi

9
1

score -3 · Answer 53 · answered Jul 14 '20 at 06:43

-3

taskkill /F /IM dart.exe then flutter clean

answered Jul 14 '20 at 06:43

Mt Khalifa

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While this code may solve the question, [including an explanation](//meta.stackexchange.com/q/114762) of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. Remember that you are answering the question for readers in the future, not just the person asking now. Please [edit] your answer to add explanations and give an indication of what limitations and assumptions apply. – Tschallacka Jul 14 '20 at 14:01
I have tried all these methods but still it is stuck at assemble gradle debug. This issue never happened before. Please help – user24826 Jan 12 '22 at 12:46

Flutter App stuck at "Running Gradle task 'assembleDebug'... "

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