c# Linq problem z wydobyciem danych z bazy

Question

Witam mam problem, probuje pobrac z bazy danych do jednej listy miasta a do drugiej ulice jednak wyskakuje mi blad.. 

static void Main(string[] args)
        {

            try
            {

                ClientDatabase1Entities db = new ClientDatabase1Entities();


                var city = (from City in db.Clients select City).ToList();
                List<string> City1 = city.ConvertAll(x => Convert.ToString(x));

                var street = (from Street in db.Clients select Street).ToList();
                List<string> Street1 = street.ConvertAll(x => Convert.ToString(x));

                
                for (int i = 0; i < Street1.Count; i++)
                {
                    //Google Api
                    string urlgps = string.Format("https://maps.googleapis.com/maps/api/geocode/json?address={0}+{1}&key={2}", City1[i], Street1[i], googleapikeygps);
                    WebClient client1 = new WebClient();
                    string weather = client1.DownloadString(urlgps);
                    WeatherItemclass weateritem1 = JsonConvert.DeserializeObject<WeatherItemclass>(weather);
                    string lat = Convert.ToString(weateritem1.results[0].geometry.location.lat);
                    string lng = Convert.ToString(weateritem1.results[0].geometry.location.lng);
                    string convertlat = lat.Replace(',', '.');
                    string convertlng = lng.Replace(',', '.');
                    //Weather Api
                    string url = string.Format("http://api.openweathermap.org/data/2.5/forecast/daily?lat={0}&lon={1}&units=metric&cnt=1&APPID={2}", convertlat, convertlng, weatherapikey);
                    WebClient client2 = new WebClient();
                    string dataweatherjson = client2.DownloadString(url);
                    string datajson = dataweatherjson;
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Can not open connection! Exception: {0}", ex);
                Console.ReadLine();
            }
            

dodam tez screena z baza

Answer 1

po błędzie w catch co sobie zapisałeś to pewnie nie masz connetionstringa do db :p

Answer 2

A coś więcej???

Jaki błąd??

Kiedy leci?