✅ Exception being thrown when attempting to use Weather api

 async void callweatherapi()
 {
     string apiKey = "kanyecooked";
     string city = Citysearch.Text;
     string apiUrl = $"https://api.openweathermap.org/data/2.5/weather?q={city}&appid={apiKey}&units=metric";
     using (HttpClient client = new HttpClient())
     {
         try
         {
             HttpResponseMessage response = await client.GetAsync(apiUrl);
             response.EnsureSuccessStatusCode();
             string json = await client.GetStringAsync(apiUrl);
             WeatherConditions.Rootobject weatherdetails = JsonConvert.DeserializeObject<WeatherConditions.Rootobject>(json);
             forcastinfo.Text = weatherdetails.weather[0].main;
             windspeedinfo.Text = weatherdetails.wind.speed.ToString();

             if(weatherdetails == null)
             {
                 Debug.WriteLine("no data");
             }

         }
         catch (Exception ex)
         {
             Console.WriteLine("Did not work"+ex.Message);
         }

     }
 }