的InnerException = {「異常來自HRESULT：0x8004231C」}

我正在開發Windows Phone中的Silverlight 8.1中，我想設置使用this鏈接代碼當前位置和硬編碼的目的地之間的路徑的應用程序：的InnerException = {「異常來自HRESULT：0x8004231C」}

private async void GetCoordinates() 
     { 
      Geolocator myGeolocator = new Geolocator(); 
      myGeolocator.DesiredAccuracyInMeters = 50; 
      Geoposition myposition = null; 
      try 
      { 
       myposition = await myGeolocator.GetGeopositionAsync(TimeSpan.FromMinutes(1),TimeSpan.FromSeconds(50)); 
       Geocoordinate myGeocoordinate = myposition.Coordinate; 
       GeoCoordinate myGeoCoordinate = CoordinateConverter.ConvertGeocoordinate(myGeocoordinate); 
       mycoordinates.Add(new GeoCoordinate(myGeoCoordinate.Latitude, myGeoCoordinate.Longitude)); 
       locationmap.Center = myGeoCoordinate; 
       locationmap.ZoomLevel = 13; 

       Mygeocodequery = new GeocodeQuery(); 
       Mygeocodequery.SearchTerm = "Seattle, WA"; 
       Mygeocodequery.GeoCoordinate = new GeoCoordinate(myGeoCoordinate.Latitude, myGeoCoordinate.Longitude); 
       Mygeocodequery.QueryCompleted += Mygeocodequery_Querycompleted; 
       Mygeocodequery.QueryAsync(); 
      } 
      catch (UnauthorizedAccessException) 
      { 
       MessageBox.Show("Location is disabled in phone settings or capabilities are not checked."); 
      } 
      catch (Exception ex) 
      { 
       MessageBox.Show(ex.Message); 
      } 
     } 

     private void Mygeocodequery_Querycompleted(object sender, QueryCompletedEventArgs<IList<MapLocation>> e) 
     { 
      if(e.Error==null) 
      { 
       MyQuery = new RouteQuery(); 
       mycoordinates.Add(e.Result[0].GeoCoordinate); 
       MyQuery.Waypoints = mycoordinates; 
       MyQuery.QueryCompleted += MyQuery_QueryCompleted; 
       MyQuery.QueryAsync(); 
       Mygeocodequery.Dispose(); 
      } 
     } 

     private void MyQuery_QueryCompleted(object sender, QueryCompletedEventArgs<Route> e) 
     { 
      try 
      { 
        **Route MyRoute = e.Result;** 
        MapRoute MyMapRoute = new MapRoute(MyRoute); 
        locationmap.AddRoute(MyMapRoute); 
        MyQuery.Dispose(); 
      } 
      catch (TargetInvocationException ex) 
      { 
       MessageBox.Show(ex.InnerException.Message); 
      } 
     }

有時候工作正常，但有時我得到這個內部異常如TargetInvocationException Exception from HRESULT: 0x8004231C

上線高亮請讓我知道我應該怎麼辦？

來源

2016-03-04 Vinita

問題是唯一的，因爲我已經跳過步驟寫在地圖控制

private void locationmap_Loaded(object sender, RoutedEventArgs e) 
    { 
     Microsoft.Phone.Maps.MapsSettings.ApplicationContext.ApplicationId = "yourapplicationID"; 
     Microsoft.Phone.Maps.MapsSettings.ApplicationContext.AuthenticationToken = "yourauthenticationtoken"; 
    }

的加載事件下面的代碼，如果這個代碼添加它正常工作的所有位置。

來源

2016-03-07 12:08:57 Vinita

的InnerException = {「異常來自HRESULT：0x8004231C」}

回答

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