Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,933 questions
I ran VS 2019 in Administrator mode and it resolved the Exception.
System.UnauthorizedAccessException while loading XAML Design view in VS 2019 ( Developer mode enabled )
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 89%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMV%3C/text%3E%3C/svg%3E)
Manikandan Venkataraman
1
Reputation point
I recently moved to UWP development and facing issues with my first project. XAML design view is throwing a System.UnauthorizedAccessException in VS 2019. Developer mode is enabled, and its a corporate laptop. Attached the stack trace. Kindly help.
System.UnauthorizedAccessException
Access is denied.
Access is denied.
at Microsoft.VisualStudio.DesignTools.UwpDesignerHost.Utility.PackageDependencyHelper.EnsureDependencyRegistered(IAppPackageHelper appPackageHelper, HostPackageDependency packageDependency, CancellationToken cancelToken)
at Microsoft.VisualStudio.DesignTools.UwpDesignerHost.Utility.PackageDependencyHelper.RegisterPackageDependency(IAppPackageHelper appPackageHelper, HostPackageDependency packageDependency, PackageManifestUpdater packageManifestUpdater, CancellationToken cancelToken)
at Microsoft.VisualStudio.DesignTools.UwpDesignerHost.Utility.CoreRuntimeRegistrationHelper.EnsureCoreRuntimeRegistered(IAppPackageHelper appPackageHelper, PackageManifestUpdater packageManifestUpdater, CancellationToken cancelToken)
at Microsoft.VisualStudio.DesignTools.UwpDesignerHost.ShadowCopy.AppxPlatformOnlyShadowCopyWorker.UpdateDependencies(CancellationToken cancelToken)
at Microsoft.VisualStudio.DesignTools.UwpDesignerHost.ShadowCopy.AppxPlatformOnlyShadowCopyWorker.<>c__DisplayClass6_0.<CopyProjectContentAsync>b__0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.DesignTools.DesignerHost.HostServices.HostPlatformBase.<EnsureProjectPayloadAsync>d__35.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.DesignTools.UwpDesignerHost.UwpHostPlatform.<EnsureProjectPayloadAsync>d__21.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.DesignTools.DesignerHost.HostServices.HostPlatformBase.<EnsureShadowCacheContent>d__27.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.DesignTools.DesignerHost.HostServices.HostPlatformBase.<CreateSurfaceProcessAsync>d__26.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.DesignTools.SurfaceDesigner.Documents.SurfaceIsolation.SurfaceProcessContext.<EnsureSurfaceProcessAsyncCore>d__107.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.DesignTools.SurfaceDesigner.Documents.SurfaceIsolation.SurfaceProcessContext.<EnsureSurfaceProcessAsyncInternal>d__105.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.DesignTools.XamlSurfaceDesigner.Views.IsolatedSurfaceImageHost.<CreateSurfaceAsync>d__66.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)
System.AggregateException
One or more errors occurred.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 92%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERL%3C/text%3E%3C/svg%3E)
Roy Li - MSFT 32,996 Reputation points Microsoft Vendor2022-02-23T09:11:15.613+00:00 So the XAML designer in the Visual Studio doesn't show the Xaml now, right? Have you tried to run your app to see if your app could run correctly?
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Manikandan Venkataraman 1 Reputation point
2022-02-23T16:27:16.22+00:00 -
Roy Li - MSFT 32,996 Reputation points Microsoft Vendor
2022-02-24T01:35:51.21+00:00 Glad to hear the good news! Have a nice day.
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