Exception When Trying to Serialize

[seanocali]

Hi I'm new to Flutter/Dart coming from dotnet, first hiccup I ran into is json requiring a lot of work compared to C# JSON.net. Your plugin looks like the best option. Followed the documentation and ran this:

import 'package:dart_json_mapper/dart_json_mapper.dart';
import 'main.mapper.g.dart';

@jsonSerializable
class MyTestClass{
  String? name;
  int? age;
}

void main() {
  var myTestObj = MyTestClass();
  myTestObj.name = "Jesse Doe";
  myTestObj.age = 20;

  String serialized = JsonMapper.serialize(myTestObj);
}

And it throws this:

Bad state: Reflectable has not been initialized.
Please make sure that the first action taken by your program
in main is to call initializeReflectable().

[k-paxian]

It seems you are missing this part from your code

https://github.com/k-paxian/dart-json-mapper#basic-setup