using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

using System.Reflection;

using System.Collections.ObjectModel;

​

using LitJson;

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

    // Mockup of Debug.Log for https://dotnetfiddle.net/

    public static  class Debug

    {

        public static void Log(string s) => Console.WriteLine(s);

    }

​

//https://stackoverflow.com/questions/65582481/error-jsondata-is-not-a-dictionary-when-try-to-read-a-json

​

    public class BC_PlayerInfo

    {

        public string ALeaderboards = "";

​

        public BC_PlayerInfo(JsonData jsonData)

        {

            Debug.Log(jsonData.ToJson());

            //FIXED

            //ALeaderboards = SafeGet(jsonData, "aLeaderboards");

            ALeaderboards = (string)jsonData;

        }

        public BC_PlayerInfo()

        {

        }

#if false       

        // This is a bad idea.  If your JSON isn't what you expected you should fix that not swallow and ignore the exception.

        private string SafeGet(JsonData jsonData, string key)

        {

            var returnValue = "";

            try

            {

                returnValue = jsonData[key].ToString();

            }

            catch (Exception e)

            {

            }

            return returnValue;

        }

#endif

    }

​

    class TestClass

    {

        private readonly List<BC_PlayerInfo> alboards = new List<BC_PlayerInfo>();

​

        public void MisDesafios()

        {

            string scriptName = "ListEnrolledLeaderboards";

            Dictionary<string, object> scriptData = new Dictionary<string, object>();

​

            //_bc.ScriptService.RunScript(scriptName, JsonFx.Json.JsonWriter.Serialize(scriptData), successCallbackRS, failureCallbackRS);

            successCallbackRS(GetJson(), null);

        }

​

        private void successCallbackRS(string jsonResponse, object cbObject)

        {

            alboards.Clear();

            var aleaderboardData = JsonMapper.ToObject(jsonResponse)["data"]["response"]["aLeaderboards"];

            foreach (JsonData alboard in aleaderboardData) alboards.Add(new BC_PlayerInfo(alboard));

            foreach (var alboard in alboards)

            {

                string _aLeaderboards = alboard.ALeaderboards;

                Debug.Log(_aLeaderboards);

            }

        }

        private void failureCallbackRS(int status, int reasonCode, string jsonError, object cbObject)

        {

            Debug.Log("Error al mostrar el ListEnrolledLeaderboards: " + jsonError);

        }

        public static void Test()

        {

            var jsonResponse = GetJson();

            Console.WriteLine("Input JSON:");

            Console.WriteLine(jsonResponse);

​

            var test = new TestClass();

            test.MisDesafios();

            test.alboards.Dump();

            // Assert that the ALeaderboards list is the same as the list in the JSON using LINQ to JSON:

            Assert.IsTrue(test.alboards.Select(b => b.ALeaderboards).SequenceEqual(

                Newtonsoft.Json.Linq.JToken.Parse(jsonResponse).SelectTokens("data.response.aLeaderboards[*]").Select(t => t.ToString())));

        }   

        static string GetJson()

        {

            return @"{""data"":{""response"":{""aLeaderboards"":[""PLAYERS_LEADERBOARD"",""MARCHTESTERSCH01"",""MARCHTESTERSCH02"",""MARCHTESTERSCH03"",""MARCHTESTERSCH04"",""LYPSEPCYC01"",""LYPSEPRUN01"",""LYPOCTRUNEX"",""LYPOCTSKAEX"",""LYP202011HIK"",""LYP202011WALK"",""LYP202011CIC"",""LYP202012SKA"",""LYP2020SOLCHRUN"",""LYP2020SOLCHCYC"",""LYP2020SOLCHSKA"",""LYP2020SOLCHWALK"",""LYPWEBHOOKS""],""aEnrolledLB"":[""LYP202012SKA"",""LYP2020SOLCHRUN"",""LYP2020SOLCHCYC""]},""success"":true},""status"":200}";

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());

            Console.WriteLine("{0} version: {1}", typeof(LitJson.JsonMapper).Assembly.GetName().Name,  typeof(LitJson.JsonMapper).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

        public static string GetNetCoreVersion()

        {

            //https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be

            //

            var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;

            var assemblyPath = assembly.Location.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);

            int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");

            if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)

                return assemblyPath[netCoreAppIndex + 1];

            return null;

        }

    }

​

#if false

Where is the exception getting thrown?  I can't reproduce the exception with the JSON data shown in your question if I remove the call to `_bc.ScriptService.RunScript(scriptName, jsonScriptData, successCallbackRS, failureCallbackRS);` and replace it with your JSON as a string literal then no exception is thrown, see https://dotnetfiddle.net/RumLZc.  What is `_bc`?  What is `_bc.ScriptService.RunScript()` supposed to do? Is it documented to be able to handle JSON arrays?

​

That being said, you have a bug in the `BC_PlayerInfo` constructor.  `ALeaderboards = SafeGet(jsonData, "aLeaderboards");` should be `ALeaderboards = (string)jsonData;` since the JSON being passed in is an entry in the `"aEnrolledLB"` array.

#endif  

​

​