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HRESULT: 0x80270254 on Windows Phone Programming

I have problems winning visual studio 2013. Whenever I create a new project for the Windows Phone 8.1 application, MainPage.xaml works fine until I restart or turn off my laptop. But when I turn on my laptop and try to open this existing project, MainPage.xaml does not load. It says:

System.Runtime.InteropServices.COMException This app does not support the contract specified or is not installed. (Exception from HRESULT: 0x80270254)

Here is the complete error information.

 System.Runtime.InteropServices.COMException This app does not support the contract specified or is not installed. (Exception from HRESULT: 0x80270254) at Microsoft.Expression.HostUtility.AppPackage.AppPackageNativeMethods.IApplicationActivationManager.ActivateApplication(String appUserModelId, String activationContext, ActivateOptions options, Int32& processId) at Microsoft.Expression.HostUtility.AppPackage.WrtUtility.ActivateApplication(String appUserModelId, String activationContext, Object site) at Microsoft.Expression.HostUtility.Platform.AppContainerProcessDomainFactory.ActivateApplicationInternal(String appUserModelId, String activationContext, Object site) at Microsoft.Expression.HostUtility.Platform.AppContainerProcessDomainFactory.CreateDesignerProcess(String applicationPath, String clientPort, Uri hostUri, IDictionary environmentVariables, Int32& processId, Object& processData) at Microsoft.Expression.DesignHost.Isolation.Primitives.ProcessDomainFactory.ProcessIsolationDomain..ctor(ProcessDomainFactory factory, IIsolationBoundary boundary, AppDomainSetup appDomainInfo, FrameworkName targetFramework, String identifier, String baseDirectory) at Microsoft.Expression.DesignHost.Isolation.Primitives.ProcessDomainFactory.CreateIsolationDomain(IIsolationBoundary boundary) at Microsoft.Expression.HostUtility.Platform.AppContainerProcessDomainFactory.CreateIsolationDomain(IIsolationBoundary boundary) at Microsoft.Expression.DesignHost.Isolation.Primitives.IsolationBoundary.Initialize() at Microsoft.Expression.DesignHost.Isolation.Primitives.IsolationBoundary.CreateInstance[T](Type type) at Microsoft.Expression.DesignHost.Isolation.IsolatedObjectFactory.Initialize() at Microsoft.VisualStudio.ExpressionHost.Services.VSIsolationService.CreateObjectFactory(IIsolationTarget isolationTarget, IObjectCatalog catalog) at Microsoft.Expression.DesignHost.Isolation.IsolationService.CreateLease(IIsolationTarget isolationTarget) at Microsoft.Expression.DesignHost.IsolatedDesignerService.CreateLease(IIsolationTarget isolationTarget, CancellationToken cancelToken, DesignerServiceEntry& entry) at Microsoft.Expression.DesignHost.IsolatedDesignerService.IsolatedDesignerView.CreateDesignerViewInfo(CancellationToken cancelToken) at Microsoft.Expression.DesignHost.Isolation.IsolatedTaskScheduler.InvokeWithCulture[T](CultureInfo culture, Func`2 func, CancellationToken cancelToken) at Microsoft.Expression.DesignHost.Isolation.IsolatedTaskScheduler.<>c__DisplayClassa`1.<StartTask>b__6() at System.Threading.Tasks.Task`1.InnerInvoke() at System.Threading.Tasks.Task.Execute()
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3 answers

I just updated vs with update 4 and the problem went away.

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I had exactly the same problem. In my case, helped reinstall Visual Studio.
This takes a lot of time, especially the part "Configuring your system, it may take some time", but the problem is resolved.
My environment: Windows 8.1 Pro x64 + Visual Studio 2013 community

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read my answer here: fooobar.com/questions/66012 / ... , this is just an attempt, but it solved the problem for me only with a reboot.

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Source: https://habr.com/ru/post/1206876/

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