Dart Data Class Generator is not working it is showing: item couldn't be converted to a data class: Class doesn't have unique property names

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Dart Data Class Generator is not working it is showing: item couldn't be converted to a data class: Class doesn't have unique property names

I am having the same issue (it used to work)..

import 'dart:convert';

import 'model_exports.dart';

class FIDS_FlightUpdate {

GreatCircleDistance? greatCircleDistance ;
DepartingDepartureInfo?  departure;
DepartingArrivalInfo?    arrival;

String? lastUpdatedTimeUtc ; //Example:"2021-10-04 18:20Z"
String? number;  //Example:"AF 3139"
String? callSign;
String? status;  //Example:"Departed"
String? codeshareStatus;  //example:"IsCodeshared"
bool?   isCargo;  //Example:false
FIDS_Aircraft? aircraft;
FIDS_Airline? airline;

}
Gives error message......
FIDS_FlightUpdate couldn't be converted to a data class: Class doesn't have unique property names!

I do not see any duplicate property names.

You have two models in the same dart file. Start by separating them into their respective dart files.

For each model u want to use the generator on, make sure you have defined their properties before applying the generator using short-cut key combination:

> Ctrl + Shift + P

and type Dart Data class Generator: Generate from class properties and strike enter key.

Make sure you don't have duplicate properties.

with the above done, it should work fine. However, if it doesn't, please post here with more details about the error.