Develop Reference

Why is my settings file missing if I copied and pasted my entire project folder?

I copied/pasted my project folder from my desktop to my laptop and installed most of the things needed, like the Android SDK, flutter, and the dart sdk. However, when I try to run my app, it gives an error:
Starting Gradle Daemon...
Gradle Daemon started in 2 s 402 ms
FAILURE: Build failed with an exception.
* What went wrong:
Executing Gradle tasks as part of a build without a settings file is not supported. Make sure that you are executing Gradle from a directory within your Gradle project. Your project should have a 'settings.gradle(.kts)' file in the root directory.
Why would this file be missing if I copied the whole project root folder?

In terminal run
flutter run
In the root directory of the project..
Or if you are using VS Code try
f5 key to start debugging. Or in case of android srudio you should be seeing a play button to run it as a flutter project.

The problem was that I was hitting the play button while the configuration was set to something other than main.dart.

Android Studio Fails with: "File was deleted, but previous version not found in cache"

I had a project on Android Studio which was working. But after I ran
git pull and then git reset --hard and tried to run it again, build failed with the message:
File 'com.android.builder.files.ZipCentralDirectory#412e039a' was deleted, but previous version not found in cache

Build -> Clean Project fixed my problem.

Go to Task Manager
Search for any instances of OpenJDK or java in task manager click and End Task
Run flutter clean in IDE
The Reason was Flutter Clean cant delete the build while the Application is still running in the Background process, u have to close it and run.

I also faced the same issue. it occurs when you run> flutter clean command that actually did't clean all the files inside build directory of your project, and causes the issue.
So the simple solution is, delete your build directory manually. If it alerts "File in Use" dialogue then simple do the following steps
open the run command with shortcut Window+R
type resmon.exe it will open the resource monitor
click on "CPU" tab
click on "Associated handles" and type build in search bar
right click on java.exe and end process
restart your IDEA and run your project the problem is solved

An alternative way to fix this issue is to run flutter clean.
You mentioned you are using android studio, go to your terminal inside android studio and then run the above mentioned command.
After the above command was executed then run your app again.
This simple solution worked for me !

Using Android Studio 3.6.2 for a Flutter project there is no 'Build -> Clean' unless you 'Open Android module in Android studio'. Then there is a 'Build -> Clean Project'.
An alternative as mentioned above is to open the terminal in the project where you may Debug your application and run 'flutter clean'.
For me the latter is better since I typically only open the Flutter android module when I want to build a release of my app.

Open Android module in Android studio
run success
execute ‘Build -> Clean’
close Android module in Android studio
run flutter project again

Error: Finish can only be called once

I have a problem with Gradle building. When I build my project, it displays the error:
Finish can only be called once in android studio
Anyone have idea about this error?

in android studios go to ....
file > invalidate caches and restart ....click invalidate and restart button in confirmation dialog..
might take few time to build Gradle..

I was able to resolve this issue by stopping the currently running gradle daemon so from command line:
./gradlew --stop
Or if you're using android studio: Restart android studio.
I've cleared the cache in advance but it didn't work.

Close Android Sudio, on your Home directory (on windows : C:\Users\YourUserName) enter .gradle directory and erase caches directory, then restart Android Studio and the error should be solved.
on windows : C:\Users\YourUserName) enter .gradle directory and erase caches directory

if you run Android Studio as root, then run gradle commands as root too, try sudo ./gradlew assembleDebug or sudo ./gradlew assembleRelease

There are many sophisticated answers. But for me none of this helped, only reboot.

A simple restart of android studio works.

People, if you are using Android Studio in mac, by default you will be getting a BUILD file added in your project.Not sure whether it is bug or might be added default to all Android Studio Projects. Make sure to delete
BUILD file and then restart Android Studio. If you see the same error "Error: Finish can only be called once" again then restart your computer.As i faced this issue many times, this solutions worked for me.

error "Finish: only can be called once"
Gradle cache problem: The default amount of cache path in:
on windows: C: \ Users \ YourUserName)
1, exit the studio
2, enter the cache path, find C: \ Users \ Administrator . Gradle
3, delete the caches folder or delete. gradle folder
4, restart studio to rebuild;

recreate andoid studio configuration.
close problem project.
remove .iml files and .gradle .idea directories.
open project.

Gradle sync failed: Failed to create parent directory

I've faced a problem during the installation process of the android studio. I've ignored the failure at the start and after creating a project,it stated that "Gradle sync failed: Failed to create parent directory".
I've downloaded most SDK and searched for possible answers online but I'm still not able to solve the problems.
Please provide me with all the help possible. Thank you

In my case, I have pulled my repository, and it was displaying this error. To fix, just run the commands:
flutter clean
and then:
flutter run

It is because android studio needs admin privilege to create directory in that path.
So, to solve this problem simply run android studio as administrator

Look at the location its failing to create, go to that location and delete cache folder, worked for me

deleting the build folder in the android/app directory fix my problem

I run chown -R user:user /path/to/.gradle.
I found some of the directories had been owned by root. Maybe its because, during software update, i was forced to run Android Studio or IntelliJ IDEA as root due to installing them under /usr/local

If you are building project on same computer just run flutter clean and then invalidate caches and restart project.
else delete build folder from project directory.

delete the build folder in the android/app

Execution failed for task ':app:packageDebug' - Failed to read zip file

Without any changes in my code, suddenly i get this error when I try to run my app:
What went wrong:
Execution failed for task ':app:packageDebug'.
com.android.builder.packaging.PackagerException: java.io.IOException: Failed to read zip file 'C:\Users\Eliran\AndroidStudioProjects\Forum\app\build\outputs\apk\app-debug.apk'.
I have no idea why its trying to read the apk as zip file.
If I restart Android Studio, I can run the app once and then It happens again.

For me it helps (for now) when I Exit Android Studio, next I used Windows Task Manager (Ctrl + Shift + Esc) and kill process Java(TM) Platform SE binary and delete that file manually. After that I run Android Studio again, click on the Clean Project (there can be an error with app:clean, but you can run Android Studio again) and next click Make Project - after that of course Run 'app' button in Android Studio.

This issue has been reported to the development team: https://code.google.com/p/android/issues/detail?id=210693&thanks=210693&ts=1463824240

Its solve my problem perfectly. i Just delete my build file and file>> Invalidate and restart android studio. This problem occur for me change dependency version

I try manual delete file, but the SO inform: the file "app-debug.apk" is in use by "OpenJDK Platform Binary". Then I kill "OpenJDK Platform Binary" and this worked.

If you are using flutter, type
flutter clean
and restart your ide. It worked for me.

After wasting my 4 hours i could fix this.
I fixed it by deleting ~/.android/debug.keystore file.

1.delete debug.keystore file
C:\Users\xxx\.android\debug.keystore
flutter clean
restart ide

just delete debug.keystore file under .android