Xamarin.forms error

Getting NameResolutionFailure error

        private const string BaseUrl = "http://intilaqemployees.azurewebsites.net/api/employeesapi";
        public async Task<List<Employee>> GetEmployeesAsync()
        {
            var httpClient = new HttpClient();
            try
            {
                var jsonResponse = await httpClient.GetStringAsync(BaseUrl).ConfigureAwait(false);
                
                //The following line never gets executed
                var employeesList = JsonConvert.DeserializeObject<List<Employee>>(jsonResponse);

                return employeesList;
            }
            catch (Exception ex)
            {
            }

            return null;
        }

You sure this one is not an AggregateException type?
http://stackoverflow.com/questions/22024856/dns-resolution-failure-in-httpclient-throws-unhandled-aggregateexception

Did try with catch (AggregateException exception) { }
No its not an AggregateException.