Failure to deploy on Surface tablet

Using Unity 2017.3.1f1, I created a very basic AR app. All it contains is an ARCamera, an ImageTarget, and a simple 3D model which is a child of the ImageTarget. It works fine on my Windows 10 desktop computer with external webcam in the Unity editor, and as a standalone EXE (with the known issue of black camera space). So next I generated it for UWP to deploy on my Surface tablet.

It generated, then I created an App Package (x64 Release) in Visual Studio 2017. I copied it over to my Microsoft Surface (Windows 10). I attempted to install with a PowerShell run of Add-AppDevPackage.ps1. It successfully secured a developer license and started unpacking and installing, then terminated with:

"error 0x80070490: Cannot process the Microsoft.Office.Sway_17.6216.20251.0_x64_8wekyb3d8bbwe package because the following error was encountered while retrieving the 4 property for the value 'images\SwayAppList.png': Element not found."

Sway is an Office product. I don't understand why my simple app would have any need for it. My Dependencies folder only has two files in it: Microsoft.NET.CoreRuntime.1.1.appx and Microsoft.VCLibs.x64.10.00.appx.

Any guidance would be much appreciated. Thank you!

 

Here's the PowerShell output:

Found bundle: C:\Users\asbrian\Desktop\Simple_AR_1.0.3.0_Test\Simple_AR_1.0.3.0_x64.appxbundle

Installing app...

Found dependency package(s):

C:\Users\asbrian\Desktop\Simple_AR_1.0.3.0_Test\Dependencies\x86\Microsoft.NET.CoreRuntime.1.1.appx

C:\Users\asbrian\Desktop\Simple_AR_1.0.3.0_Test\Dependencies\x86\Microsoft.VCLibs.x86.14.00.appx

C:\Users\asbrian\Desktop\Simple_AR_1.0.3.0_Test\Dependencies\x64\Microsoft.NET.CoreRuntime.1.1.appx

C:\Users\asbrian\Desktop\Simple_AR_1.0.3.0_Test\Dependencies\x64\Microsoft.VCLibs.x64.14.00.appx

Add-AppxPackage : Deployment failed with HRESULT: 0x80073CF6, Package could not be registered.

error 0x80070490: Cannot process the Microsoft.Office.Sway_17.6216.20251.0_x64__8wekyb3d8bbwe package because the following error was encountered while retrieving the 4 property for the value 'images\SwayAppList.png': Element not found.



NOTE: For additional information, look for [ActivityId] 5e7669d1-36c0-0001-e724-795ec036d101 in the Event Log or use

the command line Get-AppxLog -ActivityID 5e7669d1-36c0-0001-e724-795ec036d101

At C:\Users\asbrian\Desktop\Simple_AR_1.0.3.0_Test\Add-AppDevPackage.ps1:388 char:13

+             Add-AppxPackage -Path $DeveloperPackagePath.FullName -Dep ...

+             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : WriteError: (C:\Users\asbrian..._x64.appxbundle:String) [Add-AppxPackage], IOException

    + FullyQualifiedErrorId : DeploymentError,Microsoft.Windows.Appx.PackageManager.Commands.AddAppxPackageCommand

Error: Could not install the app.

 

When I did that, it went app-searching for something to open it. Am I missing a necessary component on the tablet?

 

The tablet is running Windows 10 Home, version 1511.

 

I got it! Your suggestion about the age of the target OS set me down the right path. In looking how to change the UWP version for an existing project, I ultimately discovered the problem was that Xamarin.Forms was not added to the project, which I did in VS 2017 and it works now. Is that a necessary manual step, or is there a setting that I missed in Unity that should do that?

Thank you for your help!


Edit to add: Still not quite there, but it's progress. It seems now that it works in Debug, but I get the original deployment error in Release.

 

That may have been a red herring. It's all working now. I think the real step forward was generating a Debug version, which I happened to do at the same time as adding Xamarin.Forms. It would still fail for Release, though. I finally checked the Windows Store and saw that Sway was due for update, but was stuck in a Pending status. A few googles later, I cleared the store cache, restarted the update service, and Sway updated. The Release version of my app works fine now. It must have been some incompatibility between my Microsoft.VCLibs.x64.14.00 dependency and the version of Sway that was installed but never updating. Thanks again!