Visual Studio Error: DEP6250 - windows-phone-8

everytime I try to start my app on my Lumia 1020 I get this error:
Error: DEP6250 : The Device runs on a not supported version of the OS
(I translated it from german...)
I "unlocked" my phone a few minutes ago so I think that this won't be the problem.
I also searched for an update but everything is fine...
I used the free Visual Studio express 2013 for store developers
Does anyone have ideas?

Your problem is that you are probably trying to deploy a Windows Phone 8.1 app to a device running Windows Phone 8.0. That is not possible. You need to Either create a Windows Phone 8.0 app and run it on the device or update your device to Windows Phone 8.1 in order to run WP8.1 apps. Windows Phone 8.0 apps will work on WP8.1 but the other way around will not happen.

Related

Windows phone - You have installed the maximum number of development app

I have a windows app that's running for a while and recently when I'm trying to deploy the application on windows phone running windows 8.1 OS(using visual studio 2013 and windows phone application deployment) I'm getting the following error:
"You have installed the maximum number of development apps. These apps are installed to your device when you start them in Visual Studio or when you use the App Deployment Tool. Please uninstall one of them and then try again."
I've tried to reset the phone, renaming the app and the phone on windows explorer, unregister & register the phone and also uninstalling all the other applications on it.
The problem is happening on two different devices Nokia Lumia 630 & Nokia Lumia 920.
Is there another way to approach this?
Thanks in advance
This issue has been fix now and we can register our Windows Phone 8.1 for developing:
Could you please try to unregister the Phone from the Dev Center and register Phone again to see if it works?

Visual Studio support creation of Windows Phone 8.0

How do you make a Windows Phone 8.0 application with Visual Studio 2013?
Windows Phone 8.0 Project Template in VS2013.4
I've followed the above but when I hit next it automatically makes a 8.1 project. It prompted me once on if I wanted 8.0 or 8.1, but that prompt no longer appears.
EDIT: Creating a Blank App (Windows Phone) only creates an 8.1 app. Creating a Blank App (Windows Phone Silverlight) gives an option of 8.0 and 8.1.
What's going on?
I haven't tried this but I think you need to install the sdk for Windows 8 separately. You can side by side install multiple OS versions in your Visual Studio to have a look that how your app would respond in windows 8 environment.
You then also need the respective emulator image too.
After some googling i have found a link, I personally haven't tried this ever but I hope this would be useful.
Windows Phone SDK archives
This link contains the SDK for Windows 8 and 7.5 along with their respective emulator images.

How to debug windows phone apps on windows tablet

Ok so I got windows 8.1 nextbook to test on. I created some basic browser app in visual studio running on virtual windows server 2012 r2. My main machine is windows 7. When I connect with USB cable nothing happens (who could have predicted that). I thought I could deploy my app on tablet and do a debug like that but haven't find a way to do it. Anybody here with experience in this scenario, I googled everywhere and the only thing I found is that documentation sucks
You cannot run a Windows Phone app on Windows. You need a Windows Phone or a Windows Phone emulator to run the Windows Phone app. To run on Windows you need to write a Windows Store app. Windows 8.1 on a tablet is the same as Windows 8.1 on a desktop or laptop computer.
In your case you'll probably need a physical Windows Phone since you are already running virtualized. The Windows Phone emulator is a Hyper-V image and is not supported nested in a Hyper-V guest OS.
If you write a Windows Universal app then the code will be mostly the same for the Windows and Windows Phone targets (the UI layer is usually different), so you can write and test the bulk of the app as a Windows Store app to run on your tablet and then recompile for Windows Phone.

Anyways of running app without requiring Windows 8 Pro version

I have been using Windows 8.1 for creating Windows Store apps. Below is output of winver command.
I have installed necessary updates to start developing universal Windows Store app using JavaScript. When I try to launch app on Windows Phone emulator, I am getting following error.
Unable to start windows phone emulator
It also suggesting to use Windows 8 pro version. Is there anyway of running this without requiring to throw more money on getting Windows 8 Pro version?
Windows Phone Emulator requires Hyper-V which needs Windows Pro version. That's probably why you aren't able to start your Emulator.
As I've posted in comment, I've heard about VirtualBox and an ability to run WP Emulator on it. Some helpful links: other question on SO, VirtualBox forum, video. I'm not sure how it will work (and if) as I haven't tried this.
IMO I would follow WiredPrairie's comment - upgrade or buy inextensive phone.

Windows Phone 8 SDK debug wont start

I have installed Windows Phone 8 SDK, openened the VS express for Windows Phone,
created New Project with simple app, pressed F5, but the emulator wont start.
Is comes up with error:
Exception from HRESULT: 0x89721800
I don't have any network drivers installed which should be called Windows Phone Emulator.
I have Windows 8, with built-in Administrator account and full privs.
P.s. Main reason for this I want to deploy some apps on my Nokia Lumia 800.
I have unlocked it, but when i was deploying app with deployment tool, it came up with the same error message.
P.p.s I've installed Windows Phone SDK 7 and there the emulator worked, but i can't find any way to deploy app to phone
I blogged about this a couple of weeks ago. You can see the full details here: Resolving windows Phone Emulator Problems
XDE cleanup, and Hyper-V is a very common reson for problems with the emulator!
Regarding deployment to phone from windows phone sdk 7, remember to change debug device from "Emulator WVGA 512 MB" (or what ever you use) to "Device", and always start Zune before your start debugging and deployment.
If you had installed Windows 8 (Single Language or Home Edition) with Windows Phone 8 SDK you can't develop mobile applications because it doesn't support Hyper-V.
The only way to work with Windows Phone 8 is to change your OS to Windows Pro or higher.