Build failed with an exception - flutter

while running the code got this error. I tried to reinstall the flutter ,but did not work

It looks more like a Java error,
Just to have a clear conscience, i would suggest you to run the very classic
flutter clean
and then
flutter pub get
if you're using build_runner in your project, run:
flutter pub run build_runner build --delete-conflicting-outputs
Restart your computer, it worked for some people with the same problem (Linked at the end).
If nothing of this works, reinstall your Java.
Check this for more info:
Cannot create service of type TaskExecuter using ProjectExecutionServices
https://github.com/gradle/gradle/issues/12436#issuecomment-678389275

Related

I am having a problem building a Flutter App

I has a build a flutter app before successfully, but I try to update the code of my flutter app because I discovered some bugs but when j try to build it I get a error about error configuring video_player Android, I try to add it as a Dependencies but still it didn't work, I also invalidate cache's too it didn't work because it also said something about Cache's, I also upgraded my flutter SDK, still it didn't work, I will attach a image under this write up.
The error I am facing 😭😪
The error I am facing 😭😪
Write below command in terminal to clear cache with android project path.
flutter pub cache clean
./gradlew clean
gradlew cleanBuildCache

pub run build_runner build has error (66)

hey guys i have error after using command : flutter pub run build_runner build
error message :
C:\Users\matin\AndroidStudioProjects\mosito>flutter pub run build_runner build
Could not find a file named "pubspec.yaml" in "C:\Users\matin\Documents\flutter\.pub-cache\hosted\pub.dartlang.org\async-2.8.1".
pub finished with exit code 66
i try flutter pub upgrade and a lot of things from google but problem not fixed
NOTE: im new to flutter i want use this command for making .g.dart file for my models thanks for your attention
I think may be you are not in your project directory. Suppose you have a project name A in myfolder in C drive of your computer. First goto myfolder with terminal. after that try below code to build the project...
flutter packages pub run build_runner build --delete-conflicting-outputs
Turn on Your Terminal and Run
flutter doctor
if it is showing
Could not find "flutter"
Then you need to install flutter Correctly You Can check :
https://docs.flutter.dev/get-started/install/windows

APK building failed in flutter

I've been trying to build an apk for my app but its failing and I don't understand why
this is what is shwoing
i tried to build using this command that was given to me in comments
flutter build apk --no-tree-shake-icons
but its showing me this new error now
Try add this when build your apk --no-tree-shake-icons
Generally, for errors that seem odd like this, running flutter clean then flutter pub get in the terminal helps.

Flutter clean command causes null safety errors

Ever since null-safety was introduced to Flutter, when I do flutter clean, the whole project switches to null-safety.
I can not update my whole project to null-safety quite yet as many packages I use have not migrated.
How can I do a flutter clean without getting thousands of errors telling me that non-nullable item must be initialized first...
I am currently on Flutter 1.24.0-10.2-pre, channel beta.
pubspec.yaml includes the following
environment:
sdk: ">=2.2.2 <3.0.0"
I get exactly the same issue. I haven't found a fix yet but if you open the pub spec.yaml file and save it without making changes it solves the issue until you next run flutter clean.
I have the same issue. For me running flutter pub get worked. But I still don't know why this error happens
Using VS code editor:
Go to terminal
Execute flutter pub get
The above fixed similar issue I got
I have the same problem, For me
Go To 'Terminal'
Type 'flutter pub get'
That is!!
I am using VS code.
Sometimes you have to run this command:
dart pub upgrade
or
dart pub update
If you get an error after running "flutter clean", do the following to solve the problem;
Go to your terminal
Run this command: "flutter pub get"
After this you'll see "Running 'flutter pub get' in 'xxx'(where xxx stands for the name of your project)
When this is complete, all will be reset back to normal

flutter auto route generator error : [dynamic] is not a class

when I am trying to generate the routes for my app using flutter pub run build_runner build
I'm getting an error and the generated class can't be generated
I only see [dynamic] is not a class in the generated class
try to clean and rebuild it ,It worked for me.
flutter packages pub run build_runner clean
then
flutter packages pub run build_runner build
According to the documentation:
Make sure you always Save your files before running the generator, if that doesn't work you can always try to clean and rebuild.
Then:
flutter packages pub run build_runner clean