I'm developing an application windows phone 8.1.Previously, it worked fine on Windows Phone 10 and Windows Phone 8.1, but after one of the Windows 10 updates, the app is no longer installed from the Windows Store. The installation is crushed with 0x80073CF9 error. All I found about this error in the Google is advices for Win Phone users, not for developers. Logs obtained from the device indicates a crash during installation, it also did not help me.
I checked if there is in my project proscribed names, or library, rid of all warnings. Cleaned project. But nothing helps. According to the disgruntled responses of users I can see that they can not install it too. There is no errors while create package and publishing it to Store: this is the most confusing as it is not clear what went wrong and what hinders to install the application on the device.
I am developing in Visual Studio 2015.
Did someone face similar problems?
UPDATE
I tried all the tips have been found in Google including correction time and language settings, soft reset, hard reset and many others. Result still the same.
I'm facing a weird problem. When I'm trying to debug my app on Windows Phone Emulator I'm getting this error:
Deployment failed because no Windows Phone was detected. Make sure a phone is connected and powered on.
However Emulator is launched, the app is deployed correctly and I'm able to debug it without any problems. I'm writing this question because this error is a bit annoying. I'm using the same settings on another machine and everything works fine there.
I'm using Visual Studio 2013 Ultimate / Win 8.1 with settings like below:
I found a problem. I have 3 Windows Phone projects, one of them (which was in fact not marked as a startup one) was targeting the physical device, and that caused the problem. Problem was solved by switching Target device in project properties -> Debug to emulator.
I've been trying to get the emulator to work for days. Previously I tried the Windows Phone 8.1 Emulator as well as the Windows 8.1 Simulator and both were stuck at loading the OS.
Earlier today I installed the new Windows 10 Tools and thought I should give it another try with the new Windows 10 Emulator... And no, still the same result.
What's strange is that, the Hyper-V Manager seems to be doing OK. I can see the app displays correctly on the little Preview window (see the box on the left side of the picture below).
Also, breakpoints are hit, the project seems to be running OK.
As many answers have already suggested, I tried letting it running for an hour, but still nothing came up.
Things that I've also tried include uninstalling all the Virtual Machines as well as repairing the WP 8.1 Emulator, nothing has worked so far.
Please help, this has driven me completely insane. :(
Update
Not sure if this would help, but if I change the Windows Phone Emulator Internal Switch to use Private network instead of Internal, I will get a couple of warnings saying Unable to determine the Host IP address and then the Emulator will show up with the Emergency Call screen. Not much I can do from there as the three buttons on the bottom are not functioning at all.
I understand that changing the connection type is not the right way to do it, but this at least tells me that the Emulator can work, it's just a matter of how.
I believe you have two Windows Phone Internal Switch connections and one seems to be unplugged while the other is running. Disable the one that is unplugged and leave the latter. This worked for me after 2days of tinkering. God speed.
Try the following.
Open the Hyper-V Manager
In the Actions pane, click Hyper-V Settings
In the Server pane, select Physical GPUs
Uncheck, Use this GPU with RemoteFX
Click OK to save/close.
Attempt to start the Windows Phone emulator VM from within Hyper-V Manager or Visual Studio.
I solved this problem by simply adding XDE.EXE as an exception to my Windows Firewall.
Just today
Many times it is not stuck. It just does take too long to start. I have an 8 core processor and it took like 5 minutes to launch, I tought it was stuck but it did launch.
Not sure if this would help, but if I change the Windows Phone
Emulator Internal Switch to use Private network instead of Internal, I
will get a couple of warnings saying Unable to determine the Host IP
address and then the Emulator will show up with the Emergency Call
screen. Not much I can do from there as the three buttons on the
bottom are not functioning at all.
when you set it to private network, Windows can't interact with your WP Emulator. Open Network Adapter, and try disable and try start emulator again, then enable again this adapter if it is not work *
I contacted the Visual Studio Team a couple of weeks ago and looks like they have fixed this issue in the latest update. And here is how I finally got it all working.
Update your Windows 10 TP to the latest version (currently 10074).
Install the latest Visual Studio 2015 (currently RC).
Install Windows 10 developer tools preview from here (I got
some weird errors with Error code: -2147023294. Ignore them, go
straight to the next step).
Install the standalone Windows SDK for Windows 10 Insider
Preview from here.
Install the Pre-release Microsoft Emulator for Windows 10 Mobile
from here.
That's all! After all these are done, both my Simulator and Emulator are loading up fine.
In my case, deleting the internal switch from Hyper-V virtual switch manager helps, whenever you run your app using emulator as the target, it'll add a new internal switch by itself and the emulator will run normally (no longer stuck on loading screen)
The problem is, I have to do it every single time I restart my PC
The workaround steps to install the Windows SDK and Emulator are no longer needed.
We have released a fix as of 7PM PDT 30 April 2015 for the setup error
Windows 10 SDK 10.0.10069 : The installer failed.
User cancelled installation. Error code: -2147023294"
New setups should no longer encounter this issue.
For existing installations, and for more information, see this forum post:
https://social.msdn.microsoft.com/Forums/en-US/17bc9d5e-2ea7-4149-bb75-23997db8bd25/
This worked for me:
Go to Windows Defender.
Add exclusion following path: "C:\Users\UserName\AppData\Local\Microsoft\XDE\YourEmulatorVersion"
YourEmulatorVersion - for example 10.0.14393.9
2 days, tried all that is posted here but nothing worked! Finally, since it is a lot easier nowadays to (re)install windows without loosing your files (3 hours including updates), I just resorted to that. Same thing happened, but then I saw the alert that I had not yet activated my VS to run in developer mode :) Did that, and voila, the emulator now works.
If this might be helpful: my problem started when I installed Android Studio and disabled Hyper-V from Android. Enabling it back for VS just couldn't get me to run it again. But I hear there is a way to run both Android & VS emulators using VS emulator for Android. I will try to see how that works later...
I know the question is old, but none of the above answers worked for me so I write down my two cents:
Go to Hyper-V console and remove all emulators
Go to Devices Management, under network adapters tree node, delete all virtual switches
Run an emulator from Visual Studio and see the magic happen
I build an easy App in visual studio 2013, creating it through the windows phone project. The main thing is that it's supposed to fetch data from a API of my choice and write to an XML- document. It worked code-wise but depending on what network I was using(Wireless), It gave me either and error or it worked. It worked if I compiled with my phone as the network supplier, but not on my wireless at home or the schools network.
The error I recived everytime was "the thread has exited with code 259"
I googled for some solutions, and I guessed (Not really sure it was the answer I was looking for) that the error was due because of the phone emulator "takes" my PC's IP adress or network.
They told me to just remove my phone emulator on Hyper-V manager and then just re-start my emulation and it should work.
After this was done, all hell broke lose, cause now, visual studio can't even connect to the emulator.It creates a new phone emulator in hyper-v, but can't connect to it. When I try to compile the app I created it says "Trying to connect to "WVGA 512MB" or if I choose another "WVGA 720". It does this for about 3-5 min and then it says "An error occured. Would you like to continue?"
Now I have no idea what to do. I've googled for almost 2 days and I am at lost. I've un-installed, re-installed, repaired all my visual studio but nothing helps. I am using visual studio premium 2013 if that helps..
I guess this is due to the network issues, as you said the emulator takes the default PC's IP address. But normally after removing the emulator from the Hyper-V Manager and when you try to restart it, it should work.
If none of them works try removing all the Virtual Switches from your Virtual Switch Manager which is within the Hyper-V Manager. Then create a new Internal type of a Virtual Switch and restart your machine. Then try launching the emulator.
For more look into these:
Windows Phone 8 emulator can't connect to the internet
Windows Phone 8 emulator error - Something happened while creating a switch
(WP8) Emulator (XDE) Troubleshooting Tips
I am developing Windows phone 8 app. When I try to run the emulator of WXGA or 720p I am constantly getting this error. Searching regarding this error leads to the conculsion that I should not run more and more app parallely. So I ran only VS2012 then also getting the error. I am having enough 4GB of RAM then also having problem. My friend's PC has 2 GB of RAM then also it works flawlessly in it. Anyone know what's the issue & best practice to run the emulator smoothly?
PS : I don't have REAL Windows Phone device :(
Just try rebooting your Windows 8 Phone. I just had the same issue, and rebooting worked for me while deploying on device.
Please ensure you have following to get rid of the error,
Minimum Hardware/software requirements (https://dev.windowsphone.com/en-us/oem?contentName=docs%2FGetting_Started%2FPreparing_for_Windows_Phone_development)
Valid developer license/account to develop windows phone applications
Enough free RAM (>2GB RAM should be free)
Not more than one instance of VS is trying to use same emulator.
If everything is holds good then try following,
Restart emulator & check if it fixed the issue, if not go to next step.
Go to Hyper-V manager and delete all the virtual switches related to WP. If it doesn't fix issue go to next step.
Go to Hyper-V manager and delete all the windows phone virtual machines. repair WP SDK from control panel.
More info about troubleshooting errors like this can be found at https://social.msdn.microsoft.com/Forums/windowsapps/en-US/b06cc9f2-aa5e-4cb3-9df1-0c273e1dfd68/wp8-emulator-xde-troubleshooting-tips?forum=wptools :)
In worst case, you will have to uninstall & install WP SDK.
Hope it helps.
The emulator may not work when its dedicated requirements are not perfectly matched. Emulator Requirements
You can always try deploying an app by selecting 'Device' in the emulator which will actually deploy the app on your phone and you can test it out.
note: Make sure you're using the right version of app which is to be deployed in its righteous OS version.
Also try to restart your emulator/device
Well. This might be happens because of some inner problems of Emulator. Because even me too faced this same problem some days ago. So, let me tel you what I have did and how I got rid of that problem. So, try as per my instruction and if this works. Just Mark it as an answer. else, comment what you have got after.
Check all Emulator VGA and VXGA and 720p
After you got that error, just tap Ok or Cancel in the dialog box and go to
Open Emulator -> Strat Screen will be shown -> goto All Apps -> Check your app name (It will exist and open your app and take screenshots)
I am sure this will be works for you.
Only restart the device or the emulator and the deployment will success