尝试访问该方法失败:System.Collections.Generic.List`1..ctor()

我有这段代码，可以通过它从Localhost检索json数据，但是它给出了我的标题中提到的错误.当我在调试时将响应悬停在响应上时，它向我显示了正确的响应.我正在使用JSON .NET解析json响应.

I've this code through which I am retrieveing json data from my Localhost.But it is giving the error mentioned in my title.When I hover over the response while debugging.It shows me the correct response.I am using JSON.NET to parse json response.

var response = reader.ReadToEnd();

                   List<Company> cLst = JsonConvert.DeserializeObject<List<Company>>(response);    //Error

                    this.Dispatcher.BeginInvoke(() =>
                        {

                            foreach (Company c in cLst)
                            {
                                ListBoxItemControl Li = new ListBoxItemControl();
                                Li.CompanyNameTextBlock.Text = c.CompanyName;
                                Li.PromotionTextBlock.Text = c.PromotionText;
                                listBox1.Items.Add(Li);
                            }
                        });

这是公司类别.

class Company
{
    public string CompanyName {get; set;}
    public string CompanySlogan { get; set; }
    public string CompanyDescription { get; set; }
    public string CompanyRating { get; set; }
    public string CompanyDpPath { get; set; }
    public string CompanyOtherInfo { get; set; }
    public string CompanyFollowers { get; set; }
    public int CompanyID { get; set; }

    public int PromotionID { get; set; }
    public string PromotionText { get; set; }
    public string PromotionRating { get; set; }
    public string PromotionPicPath { get; set; }
    public string PromotionTitle { get; set; }
    public int PromotionLikes { get; set; }
    public int PromotionComments { get; set; }



}