I have published an App in the store and there is this weird behavior. Some users are unable to use the app as it is giving an exception
System.UnauthorizedAccessException: Access to the path "//path//filename" denied.
The stack trace is below.
1 at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
2 at System.IO.File.InternalDelete(String path, Boolean checkHost)
3 at System.IO.File.Delete(String path)
The code which does this is
var filePath = String.Format(".\\TestDataSet\\{0}", "TestJson");
if (String.IsNullOrEmpty(content))
{
return;
}
File.Delete(filePath);
using (var stream = File.OpenWrite(filePath))
{
using (var writer = new StreamWriter(stream))
{
await writer.WriteAsync(content);
}
}
The App is up and running in 75% of devices. 25% of users are facing this issue.
Does it have something to do with the Windows Phone update in some of the devices ? Or the user can set device specific / app specific permissions ?
Related
A call to the Windows phone 8 bluetooth api is not working in Windows 8. I'm getting the following exception:
System.InvalidOperationException' occurred in sampleunivapp.Windows.exe but was not handled in user code
WinRT information: FindAllPeersAsync cannot be called before Start
Additional information: A method was called at an unexpected time.
code
PeerFinder.AlternateIdentities["Bluetooth:Paired"] = string.Empty;
var peerList =await PeerFinder.FindAllPeersAsync();
if (peerList.Count > 0)
{
wpeername.Text = peerList[0].DisplayName;
}
else
{
var msg=new MessageDialog("No active peers");
msg.ShowAsync();
}
At start I'm sorry for my English is poor. And this is the only place where i solved the problem.
I have a problem with my application. I write and test it on emulator in VisualStudnio 2012 and It work fine. But when I add aplication in WindowsPhone store and I get to phone. It crashed. I think that problem is in geolocator or something with GPS, because when i use function where my it don't use gps it work. Everywhere where i use geolocator_geopositionchanged it break down and app is terminate. in one of application page i use map control but i gave token and application id but only in class where i use map.
private void maping_Loaded(object sender, RoutedEventArgs e)
{
Microsoft.Phone.Maps.MapsSettings.ApplicationContext.ApplicationId = "id";
Microsoft.Phone.Maps.MapsSettings.ApplicationContext.AuthenticationToken = "token";
}
Do you have any sugestion or advices?
if you want watching app there is a link
http://www.windowsphone.com/pl-PL/store/app/opencaching/06bce1e1-16ef-4ebf-ac53-23b4c725f78b
I have geolocator in a few class it's one of them
Geolocator code
if (!tracking)
{
gps = new Geolocator();
gps.DesiredAccuracy = PositionAccuracy.High;
gps.ReportInterval = 100;
gps.PositionChanged += geolocator_PositionChanged;
}
else
{
gps.PositionChanged -= geolocator_PositionChanged;
gps = null;
}
tracking = !tracking;
Geoposition changed code
void geolocator_PositionChanged(Geolocator sender, PositionChangedEventArgs args)
{
double distance = 0;
distance = point.GetDistanceTo(new GeoCoordinate(args.Position.Coordinate.Latitude, args.Position.Coordinate.Longitude));
string asa = Convert.ToInt64(distance).ToString();
if (asa != null)
{
Dispatcher.BeginInvoke(() =>
{
TBodleglosc.Text = asa +"m";
navi.Rotation = 180 + Kierunek(point.Latitude, point.Longitude, args.Position.Coordinate.Latitude, args.Position.Coordinate.Longitude);
});
}
}
Debug on your device. If that cannot repro, setup a Beta Test app and use that to distribute the app back to yourself for debugging. Sometimes signing breaks things.
I debug at lumia 920 and I have a problem with convert.toDouble
because there are was , i have . and vice versa
I think that it's connected with phone language
because in english emulator and Ertay Shashko phone who debug it yesterday it's working fine.
At now application work at phone but doesn't at emulator.
but if i change settings on location and language apps work but I can't debug because visual studio have error
It's weird .....
I'm having trouble accessing a text file that is packaged with my Windows Phone 8 app.
Here is the code:
var ResrouceStream = Application.GetResourceStream(new Uri("Data-Test.docx", UriKind.Relative));
if (ResrouceStream != null)
{
Stream myFileStream = ResrouceStream.Stream;
if (myFileStream.CanRead)
{
// logiic here
retrun "Hi";
}
}
else
{
return "hello";
}
Seems simple but the app always returns "hello". i have placed the file in root and also in assets, changed it to content - copy and do not copy, resource copy and do not copy but always it returns "hello".
Spent several hours on this and all solutions I can find show the solution or very similar above!
What am I doing wrong?
EDIT: Returns "hello" when I deploy to phone or emulator.
also tried "/Data-Test...", #"\Data-Text..., #/"Data-Test...!
UPDATE 1:
string aReturn = "";
var asm = Assembly.GetExecutingAssembly();
//Use this to verify the namespacing of the "Embedded Resource".
//asm.GetManifestResourceNames()
// .ToList()
// .ForEach(name => Debug.WriteLine(name));
var ResourceStream = asm.GetManifestResourceStream("ContosoSocial.Assets.QuizQuestions.QuizQuestions-Test1.docx");
if (ResourceStream != null) // <--CHECKED AND DOES NOT EQUAL NULL
{
Stream myFileStream = ResourceStream;
if (myFileStream.CanRead) // <-- CHEACKED AND CAN READ
{
StreamReader myStreamReader = new StreamReader(myFileStream);
LOGIC & EXCEPTION HERE...?
string myLine = myStreamReader.ReadLine();
}
else
{
aReturn = "myFileStream.CanRead = true";
}
}
else
{
aReturn = "stream equals null";
}
Debug.WriteLine(aReturn);
}
The assignment of myFileStream to a StreamReader object is throwing the exception null pointer. I thought I would wrap myFileStream to a StreamReader so I can read a line at a time..? This is my first c# project and I'm unfamiliar with it's syntax and classes.
UPDATE 2:
OK I added...
Debug.WriteLine(aReturn);
...following...
string myLine = myStreamReader.ReadLine();
...and noticed it was retrieving only the 2 characters 'PK' !
So saved the .docx file as .txt and reinserted adn changed build copy to embedded - do not copy...Happy days it now pulls off the first line in the file.
Thanks to OmegaMan for your help with this one :-)
Change file type in the project to Embedded Resource
Extract the resource by working the namespace to its location. Here is an example code where I pull in an XSD:
Code:
var asm = Assembly.GetExecutingAssembly();
// Use this to verify the namespacing of the "Embedded Resource".
// asm.GetManifestResourceNames()
// .ToList()
// .ForEach(name => Debug.WriteLine(name));
var f1 = asm.GetManifestResourceStream("UnitTests.Resources.NexusResponse.xsd");
Note this is not tested on WP8, but GetExecutingAssembly is stated to work within .Net. If you get the namespace wrong, uncomment out the code and display or debug to determine the resources and their namespace.
I've written a small .NET Console program that will launch the Windows 8 Simulator. Very straightforward:
using Microsoft.SmartDevice.Connectivity;
using Microsoft.SmartDevice.Connectivity.Interface;
using Microsoft.SmartDevice.MultiTargeting.Connectivity;
MultiTargetingConnectivity connectivity = new MultiTargetingConnectivity(CultureInfo.CurrentUICulture.LCID);
var devices = connectivity.GetConnectableDevices();
ConnectableDevice connectableDevice = devices[2];
Console.WriteLine("Found Connectable Device \'" + connectableDevice.Name + "\' for Device id {" + connectableDevice.Id + "}.");
Pretty straightforward. However, what I want to do now is programmatically interact with the device. I know I can launch my own Apps by using iDevice.installApplication but what I really want to do is run a built-in app that comes with the simulator (the mail app). Can I use the SmartDevice.Connectivity libs to send touches, or launch 'hidden' apps that don't show up in the GetInstalledApplications() method? the API is sparse, and doesn't seem like a ton of developers are using this.
I've actually found a better framework than the SmartDevice framework. Inside the C:\Program Files (x86)\Microsoft XDE\8.0 folder you can find the Microsoft.XDE DLLs, which help power the Windows 8 simulator wrapper/skin, and are managed libraries that allow you to interact with the simulator. Sample code:
private static void BootViaXdeLibs()
{
var factory = new Microsoft.Xde.Wmi.XdeWmiFactory();
Console.WriteLine("Polling for virtual machines");
var virtualMachine = factory.GetAllXdeVirtualMachines(SettingsOptions.None)[2];
Console.WriteLine("Found machine {0}", virtualMachine.Name);
if (virtualMachine.EnabledState != VirtualMachineEnabledState.Disabled)
{
Console.WriteLine("Virtual Machine {0} is already running. Shutting down. ", virtualMachine.Name);
virtualMachine.Stop();
while (virtualMachine.EnabledState != VirtualMachineEnabledState.Disabled)
{
Thread.Sleep(1000);
}
}
Console.WriteLine("Starting {0}", virtualMachine.Name);
virtualMachine.Start();
while (virtualMachine.EnabledState == VirtualMachineEnabledState.Starting)
{
Thread.Sleep(1000);
}
Console.WriteLine("Sleeping before image capture to give boot time");
Thread.Sleep(30000);
//Click on the screen
virtualMachine.SendMouseEvent(new MouseEventArgs(MouseButtons.Left, 1, 295, 260, 0));
Thread.Sleep(100);
virtualMachine.SendMouseEvent(new MouseEventArgs(MouseButtons.None, 0, 295, 260, 0));
Thread.Sleep(1000);
Console.WriteLine("Saving screenshot");
//Capture Screen
var res = virtualMachine.GetCurrentResolution();
var image = virtualMachine.GetScreenShot(0, 0, res.Width, res.Height);
image.Save("C:\\image.png", ImageFormat.Png);
virtualMachine.Stop();
}
I'm developing a Windows Phone 8 Application that uses the map control. I have followed the tutorial, but I keep geeting the messagebox error: HRESULT: 0X80042706. Here is the code from the tutorial
protected override void OnNavigatedTo(NavigationEventArgs e)
{
map.ColorMode = MapColorMode.Light; map.CartographicMode = MapCartographicMode.Road; map.LandmarksEnabled = true; map.PedestrianFeaturesEnabled = true; map.ZoomLevel = 17;
routeQuery.TravelMode = TravelMode.Walking; routeQuery.QueryCompleted += rq_QueryCompleted;
base.OnNavigatedTo(e);
}
...
void rq_QueryCompleted(object sender, QueryCompletedEventArgs<Route> e) {
if (null == e.Error) {
//Recommended way to display route on map
Route MyRoute = e.Result;
MapRoute MyMapRoute = new MapRoute(MyRoute);
map.AddRoute(MyMapRoute);
}
else
MessageBox.Show("Error occured:\n" + e.Error.Message);
}
I tried to search what kind of error HRESULT: 0X80042706 was from here, but I have no idea what that meant.
I even tried to switch the if condition to e.Error == null, but still no good. Can anyone help me?
The error is because your device does not support CHAP authentication while connecting to Virtual Disk Service (i.e. Maps)
This is because you don't have an authentication id from Microsoft.
Follow the details here ( for wp8 maps another authentication is required)
http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj207033(v=vs.105).aspx
I received the same error from the same tutorial, and found it was due to no internet access to my PC (and hence no map data). Restored Internet access and the error resolved itself.
Please once check your Manifestfile and select Capability option click in ID_CAP_MAP.