EasyJSON Casting Error

Working with Easy JSON and I have run into a problem, I have a complex json structure (not my fault, I don't control it.). Working entirely in JS for compatibility issues with another asset I am using later on.

I receive this error:

 InvalidCastException: Unable to cast <{"flight":[{"actual_blocks_time":"04/08/2015 07:07:00",
 "actual_time":"04/08/2015 07:10:00",
 "aircraft_type":"320",
 "alternate_remark_one":"Landed",
 "alternate_remark_two":"Landed",
 "airline":"JQ",
 "codeshare_airlines":["QF"],
 "codeshare_flights":["QF5701"],
 "estimated_time":"04/08/2015 07:10:00",
 "flight_number":"JQ701",
 "leg":"A",
 "locations":["Melbourne"],
 "operational_date":"04/08/2015",
 "primary_remark":"Landed",
 "scheduled_time":"04/08/2015 07:15:00",
 "terminal":"1","trip_number":0}]}> (with type = System.Collections.Generic.Dictionary`2[System.String,EasyJSON.fsData]) to type System.Collections.Generic.List`1[EasyJSON.fsData]
     EasyJSON.fsData.Cast[List`1] ()
     EasyJSON.fsData.get_AsList ()
     EasyJSON.Internal.fsIEnumerableConverter.TryDeserialize (EasyJSON.fsData data, System.Object& instance, System.Type storageType)
     EasyJSON.fsSerializer.InternalDeserialize_4_Converter (EasyJSON.fsData data, System.Type resultType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_4_Cycles (EasyJSON.fsData data, System.Type resultType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_3_Inheritance (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_2_Version (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_1_CycleReference (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.TryDeserialize (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.Internal.fsReflectedConverter.TryDeserialize (EasyJSON.fsData data, System.Object& instance, System.Type storageType)
     EasyJSON.fsSerializer.InternalDeserialize_4_Converter (EasyJSON.fsData data, System.Type resultType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_4_Cycles (EasyJSON.fsData data, System.Type resultType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_3_Inheritance (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_2_Version (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_1_CycleReference (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.TryDeserialize (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.Internal.fsReflectedConverter.TryDeserialize (EasyJSON.fsData data, System.Object& instance, System.Type storageType)
     EasyJSON.fsSerializer.InternalDeserialize_4_Converter (EasyJSON.fsData data, System.Type resultType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_4_Cycles (EasyJSON.fsData data, System.Type resultType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_3_Inheritance (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_2_Version (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.InternalDeserialize_1_CycleReference (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.TryDeserialize (EasyJSON.fsData data, System.Type storageType, System.Object& result)
     EasyJSON.fsSerializer.TryDeserialize[FlightRoot] (EasyJSON.fsData data, .FlightRoot& instance)
     EasyJSON.Serializer.Deserialize[FlightRoot] (System.String json)
     FIDSLoader.GetLatestFile () (at Assets/FIDSLoader.js:76)
     FIDSLoader.Start () (at Assets/FIDSLoader.js:20)

I have tried a variety of solutions however none seem to work.

My codebase is very small so I will add it here.

 #pragma strict
 
 import System.DateTime;
 import System.IO;
 import System.Collections.Generic;
 import EasyJSON;
 
 public var path:String = "C:\\fids\\";
 private var output:String = "";
 public var dates:List.<double> = new List.<double>();
 public var filenames:List.<String> = new List.<String>();
 public var timer:float = 0;
 public var check_interval:float = 3200;
 public var ui:UIControl;
 public var flightdata:FlightRoot;
 
 function Start ()
 {
     //path.Replace('\\', Path.DirectorySeparatorChar); //for multi-OS compatibility only. Not required right now
     GetLatestFile();
     ui.PromtUpdate();
 }
 
 function Update ()
 {
     if(timer >= check_interval)
     {
         GetLatestFile();
         ui.PromtUpdate();
         timer = 0;
     }
     else
     {
         timer+=Time.deltaTime;
     }
 }
 
 function GetLatestFile()
 {
     try
     {
         var info = new DirectoryInfo(path);
         var fileInfo = info.GetFiles();
         var nojson:boolean = true;
         
         if(fileInfo.Length > 0)
         {
             for(var file in fileInfo)
             {
                 if(file.Extension)
                 {
                     if(file.Extension.Equals(".json"))
                     {
                         filenames.Add(file.Name);
                         dates.Add(DateTimeToUnixTimestamp(file.CreationTime));
                         nojson = false;
                     }
                 }
                 else
                 {
                     nojson = false;
                 }
                 
             }
             
             if(nojson)
             {
                 Debug.Log("No Valid data file");
             }
             else
             {
                 //find the laest and load it!!
                 var filename:String = filenames[GetNewestPosition()];
                 output = System.IO.File.ReadAllText(path+filename);
                 //convert to a json file
                 flightdata = new Serializer.Deserialize.<FlightRoot>(output);
                 
                 //delete all except latest. 
                 for(var oldfile in fileInfo)
                 {
                     if(oldfile.Extension)
                     {
                         if(oldfile.Extension.Equals(".json"))
                         {
                             if(!oldfile.Name.Equals(filename))
                             {
                                 //baweted!
                                 System.IO.File.Delete(path+oldfile.Name);
                             }
                         }
                     }
                 }
                 
                 //clear arrays
                 dates.Clear();
                 filenames.Clear();
                 
             }
         }
         else
         {
             Debug.Log("No Valid data file");
         }
     }
     catch(e:DirectoryNotFoundException)
     {
         Debug.Log("Invalid Directory, check directory settings");
     }
 }
 
 public function GetNewestPosition():int
 {
     var highest:double = 0;
     var highestpos:int = 0;
     var currentpos:int = 0;
     
     for(var date in dates)
     {
         if(date >= highest)
         {
             highestpos = currentpos;
         }
         currentpos++;
     }
     
     return highestpos;
 }
 
 public function GetData():FlightRoot
 {
     return flightdata;
 }
 
 public static function DateTimeToUnixTimestamp(dateTime:System.DateTime):double 
 {
     return (dateTime - new System.DateTime(1970, 1, 1).ToLocalTime()).TotalSeconds;
 }

 public class FlightRoot
 {
     var flight_set:FlightSet;
 }

 import System.Collections.Generic;
 
 public class FlightSet
 {
     var airport:String;
     var date:String;
     var flights:List.<Flight>;
     var time_window:String;
 }

 import System.Collections.Generic;
 
 public class Flight
 {
     var actual_blocks_time:String;
     var actual_time:String;
     var aircraft_type:int;
     var alternate_remark_one:String;
     var alternate_remark_two:String;
     var airline:String;
     var codeshare_airlines:List.<String>;
     var codeshare_flights:List.<String>;
     var estimated_time:String;
     var flight_number:String;
     var leg:String;
     var locations:List.<String>;
     var operational_date:String;
     var primary_remark:String;
     var scheduled_time:String;
     var terminal:int;
     var trip_number:int;
 }