Package.appxmanifest

<?xml version="1.0" encoding="utf-8"?>
<Package xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" xmlns:uap2="http://schemas.microsoft.com/appx/manifest/uap/windows10/2" xmlns:uap3="http://schemas.microsoft.com/appx/manifest/uap/windows10/3" xmlns:uap4="http://schemas.microsoft.com/appx/manifest/uap/windows10/4" xmlns:iot="http://schemas.microsoft.com/appx/manifest/iot/windows10" xmlns:mobile="http://schemas.microsoft.com/appx/manifest/mobile/windows10" xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities" IgnorableNamespaces="uap uap2 uap3 uap4 mp mobile iot rescap" xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10">
  <Identity Name="Template3D" Publisher="CN=Luminous" Version="1.0.0.0" />
  <mp:PhoneIdentity PhoneProductId="3c5c3be1-776f-4cc1-8726-df4847ae7839" PhonePublisherId="00000000-0000-0000-0000-000000000000" />
  <Properties>
    <DisplayName>Ad-Hoc Localz</DisplayName>
    <PublisherDisplayName>Luminous</PublisherDisplayName>
    <Logo>Assets\StoreLogo.png</Logo>
  </Properties>
  <Dependencies>
    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.18362.0" MaxVersionTested="10.0.18362.0" />
  </Dependencies>
  <Resources>
    <Resource Language="x-generate" />
  </Resources>
  <Applications>
    <Application Id="App" Executable="$targetnametoken$.exe" EntryPoint="Template3D.App">
      <uap:VisualElements DisplayName="Ad-Hoc Localz" Square150x150Logo="Assets\Square150x150Logo.png" Square44x44Logo="Assets\Square44x44Logo.png" Description="Template_3D" BackgroundColor="transparent">
        <uap:DefaultTile Wide310x150Logo="Assets\Wide310x150Logo.png" />
        <uap:SplashScreen Image="Assets\SplashScreen.png" BackgroundColor="#FFFFFF" />
        <uap:InitialRotationPreference>
          <uap:Rotation Preference="landscape" />
          <uap:Rotation Preference="landscapeFlipped" />
          <uap:Rotation Preference="portrait" />
          <uap:Rotation Preference="portraitFlipped" />
        </uap:InitialRotationPreference>
      </uap:VisualElements>
      <!-- 
        I had this added file type as well bcz it says so in this link: 
        https://docs.microsoft.com/en-us/uwp/api/windows.storage.knownfolders.documentslibrary#Windows_Storage_KnownFolders_DocumentsLibrary 
        
        It led to the same warning ie invalid child element when added as shown from:
        https://docs.microsoft.com/en-us/uwp/schemas/appxpackage/appxmanifestschema/element-filetypeassociation
        -->
<!--         <Extensions>
          <Extension Category="windows.fileTypeAssociation">
            <FileTypeAssociation Name="JSOn File">
              <SupportedFileTypes>
                <FileType>.json</FileType>
              </SupportedFileTypes>
            </FileTypeAssociation>
          </Extension>
        </Extensions> -->
    </Application>
  </Applications>
  <Capabilities>
    <uap2:Capability Name="spatialPerception" />
    <Capability Name="internetClientServer"/>
    <Capability Name="internetClient"/>
    <Capability Name="privateNetworkClientServer"/>
    <uap3:Capability Name="remoteSystem"/>
    <DeviceCapability Name="webcam"/>
    <uap:Capability Name="documentsLibrary"/>
  </Capabilities>
</Package>

VS Version Info.txt

Microsoft Visual Studio Community 2019
Version 16.3.2
VisualStudio.16.Release/16.3.2+29326.143
Microsoft .NET Framework
Version 4.8.03752

Installed Version: Community

Visual C++ 2019   00435-60000-00000-AA593
Microsoft Visual C++ 2019

Application Insights Tools for Visual Studio Package   9.1.00913.1
Application Insights Tools for Visual Studio

ASP.NET and Web Tools 2019   16.3.283.64955
ASP.NET and Web Tools 2019

Azure App Service Tools v3.0.0   16.3.283.64955
Azure App Service Tools v3.0.0

C# Tools   3.3.1-beta3-19461-02+2fd12c210e22f7d6245805c60340f6a34af6875b
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Common Azure Tools   1.10
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

IntelliCode Extension   1.0
IntelliCode Visual Studio Extension Detailed Info

Microsoft JVM Debugger   1.0
Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines

Microsoft MI-Based Debugger   1.0
Provides support for connecting Visual Studio to MI compatible debuggers

Microsoft Visual C++ Wizards   1.0
Microsoft Visual C++ Wizards

Microsoft Visual Studio VC Package   1.0
Microsoft Visual Studio VC Package

NuGet Package Manager   5.3.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit https://docs.nuget.org/

ProjectServicesPackage Extension   1.0
ProjectServicesPackage Visual Studio Extension Detailed Info

SQL Server Data Tools   16.0.61908.27190
Microsoft SQL Server Data Tools

Test Adapter for Boost.Test   1.0
Enables Visual Studio's testing tools with unit tests written for Boost.Test.  The use terms and Third Party Notices are available in the extension installation directory.

Test Adapter for Google Test   1.0
Enables Visual Studio's testing tools with unit tests written for Google Test.  The use terms and Third Party Notices are available in the extension installation directory.

TypeScript Tools   16.0.10821.2002
TypeScript Tools for Microsoft Visual Studio

Visual Basic Tools   3.3.1-beta3-19461-02+2fd12c210e22f7d6245805c60340f6a34af6875b
Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Visual Studio Code Debug Adapter Host Package   1.0
Interop layer for hosting Visual Studio Code debug adapters in Visual Studio

Visual Studio Tools for CMake   1.0
Visual Studio Tools for CMake

Visual Studio Tools for CMake   1.0
Visual Studio Tools for CMake

Visual Studio Tools for Unity   4.3.3.0
Visual Studio Tools for Unity