angular-dart build serve error while running webdev serve

[santubangalore]

I have just created a angular-dart project using ngdart create webapp_1 command. Now when I move into the project folder, and try to run the project by: webdev serve command, I get this error:

[SEVERE] angular:angular on web/main.dart: Bad state: Unexpected diagnostics:
C:\tools\dart-sdk\lib\core\int.dart:120:18 - Operator declarations must be preceded by the
keyword 'operator'.
C:\tools\dart-sdk\lib\core\int.dart:120:16 - Methods must have an explicit list of
parameters.
C:\tools\dart-sdk\lib\core\int.dart:120:18 - A function body must be provided

Here is my main.dart :

`import 'package:angular/angular.dart';
import 'package:webapp_1/app_component.template.dart' as ng;

void main() {
runApp(ng.AppComponentNgFactory);
}`

here is my pubspec file:

`name: webapp_1
description: A web app that uses AngularDart Components

version: 0.0.``

homepage: https://www.example.com

environment: sdk: '>=2.10.0 <3.0.0'

dependencies:
angular: ^6.0.0
angular_components: ^1.0.2

dev_dependencies:
angular_test: ^2.3.0
build_runner: ^1.9.0
build_test: ^1.0.0
build_web_compilers: ^2.10.0
meta: <1.7.0 # As of 07/12/2021, Dart throws errors if meta is 1.7.0 or above
pedantic: ^1.9.0
test: ^1.6.3`

I have run dart pub get command already. I have dart 2.15, webdev installed.

Dart version: 2.15
AngularDart version: 1.0.3
OS: Windows 10.

---

[GZGavinZhao]

OK, maintainer of ngdart here, it's definitely my problem as I haven't upgraded the templates... It's likely because of the dependencies are too old, and directly upgrading them to a compatible version require changes to the template code. I will address it in a day or two.

[GZGavinZhao]

@santubangalore Fixed, run dart pub global activate ngdart and it should work now.