Sorry for my ignorance but I am getting an error HttpResponse type could not be found. Not sure what type that should be?

>You can do this natively and skip Json.NET
>
>

>using (var client = new HttpClient())
>{
>    client.BaseAddress - new Uri(your URL goes here);
>    client.DefaultRequestHeaders.Accept.Clear(); 
>    client.DefaultRequestHeaders.Accept.add(new MediaTypeWithQualityHeaderValue("application/json");
>    HttpResponse response = await client.GetAsync(the url parameters go here);
>    if (response.IsSuccessStatusCode)
>    {
>        var result = response.Content.ReadAsAsync<DetailsHeader>();
>    }
>}
>
>

>
>
>>VS 2015 and .net 4.5 I am also using the xamarin plugin.
>>
>>>What version of .NET?
>>>
>>>
>>>>Hi all
>>>>
>>>>Probably a newbe question but I can't get this to work. I am trying to consume an API return nested json. I have tried the following code and get this error.
>>>>
>>>>Newtonsoft.Json.JsonSerializationException: Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Collections.Generic.List`1[m2m.Model.DetailsHeader]' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly.
>>>>
>>>>

>>>>            HttpClient client = new HttpClient();
>>>>            client.BaseAddress = new Uri(url);
>>>>            var response = await client.GetAsync(client.BaseAddress);
>>>>            response.EnsureSuccessStatusCode();
>>>>            var JsonResult = response.Content.ReadAsStringAsync().Result; // I have confirmed that the raw json is in JsonResult.
>>>>            
>>>>            var promotemp = JsonConvert.DeserializeObject<List<DetailsHeader>>(JsonResult);
>>>>
>>>>namespace m2m.Model
>>>>{
>>>>    }
>>>>
>>>>    public class DetailsHeader
>>>>    {
>>>>        public int autocouponlinkpk { get; set; }
>>>>        public DateTime enddate { get; set; }
>>>>        public string market_descrp { get; set; }
>>>>        public string globallogo { get; set; }
>>>>        public List<PromoDetails> details { get; set; }
>>>>    }
>>>>
>>>>    public class PromoDetails
>>>>    {
>>>>        public long autocouplinkpage2pk { get; set; }
>>>>        public string image_fullurl { get; set; }
>>>>        public string group_descrp { get; set; }
>>>>    }
>>>>}
>>>>
>>>>

>>>>
>>>>and here is the json
>>>>
>>>>

>>>>{
>>>>  "autocouponlinkpk": 170,
>>>>  "enddate": "2016-06-30",
>>>>  "market_descrp": "My test",
>>>>  "globallogo": "http://subscriberimages/47/fkpzlkxift-1423092258.jpg",
>>>>  "details": [
>>>>    {
>>>>      "autocouplinkpage2pk": 82,
>>>>      "image_fullurl": "http://marketImgs/47/xhkppjcxey-1445635420.png",
>>>>      "group_descrp": "This is page 2"
>>>>    },
>>>>    {
>>>>      "autocouplinkpage2pk": 83,
>>>>      "image_fullurl": "http://marketImgs/47/movjznnosp-1445700931.jpg",
>>>>      "group_descrp": "page 2 of page 2."
>>>>    },
>>>>    {
>>>>      "autocouplinkpage2pk": 84,
>>>>      "image_fullurl": "http://marketImgs/47/vbzkznsbkg-1445700969.jpg",
>>>>      "group_descrp": "page 3 of page 2"
>>>>    }
>>>>  ]
>>>>}
>>>>

>>>>
>>>>What am I doing wrong?
>>>>
>>>>Thanks.