Ошибка парсинга строки Json - C# - Ответ 3909027

 string myjson = @"[{""id"":55254,
""name"":""1. \u041c\u043e\u0441\u043a\u0432\u0430 F"",
""island_x"":691,
""island_y"":709,
""plenty"":""wood"",
""rare"":""iron"",
""has_conqueror"":false,
""researches"":
    {""berth"":true,
    ""conscription"":true,
    ""mathematics"":true},
""favor"":500},
{""id"":64615,
""name"":""2. \u0412\u0430\u0448\u0438\u043d\u0433\u0442\u043e\u043d F"",
""island_x"":691,
""island_y"":709,
""plenty"":""wood"",
""rare"":""iron"",
""has_conqueror"":false,
""researches"":
    {""berth"":true,
    ""conscription"":true,
    ""mathematics"":true},
""favor"":300}]";

 public class Researches
{
    public bool berth { get; set; }
    public bool conscription { get; set; }
    public bool mathematics { get; set; }
}
 
public class RootObject
{
    public int id { get; set; }
    public string name { get; set; }
    public int island_x { get; set; }
    public int island_y { get; set; }
    public string plenty { get; set; }
    public string rare { get; set; }
    public bool has_conqueror { get; set; }
    public Researches researches { get; set; }
    public int favor { get; set; }
}

JArray json = JArray.Parse(myjson);
 
RootObject rootObject = new RootObject
            {
                name = (string)json[0]["name"]
            };

 JArray json = JArray.Parse(myjson);
            RootObject rootObject = new RootObject
            {
                name = (string)json[0]["name"]
            };
            richTextBox1.AppendText(rootObject.name);