Uwp library: This assembly is built by a runtime newer than the currently loaded runtime and cannot

[v4.3.0.13]
I am trying to create a Universal Windows class library as a test project, that should test another Universal Windows class library, but the test project fails to be analyzed in NCrunch:

An error occurred while analysing this project after it was built: System.BadImageFormatException: Could not load file or assembly 'file:///E:\NCrunch\Workspaces\60820\10\AppLauncherTestUwp\bin\Release\AppLauncherTestUwp.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.
File name: 'file:///E:\NCrunch\Workspaces\60820\10\AppLauncherTestUwp\bin\Release\AppLauncherTestUwp.dll'
   at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
   at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
   at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.InternalLoadFrom(String assemblyFile, Evidence securityEvidence, Byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm, Boolean forIntrospection, StackCrawlMark& stackMark)
   at System.Reflection.Assembly.LoadFrom(String assemblyFile)
   at nCrunch.Common.ExecutionPlatform.LoadAssembly(FilePath assemblyFilePath)

The project itself is only containing 1 NUnit test and the csproj file is like below.
(I have also tried changing TargetPlatformVersion to 10.0.16299.0 but I get same error).
Is Universal Windows class library not supported as test projects?

TestProject.csproj

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProjectGuid>{DDA2ED34-8F57-4502-94A7-2FF60DA7E571}</ProjectGuid>
    <OutputType>Library</OutputType>
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>AppLauncherTestUwp</RootNamespace>
    <AssemblyName>AppLauncherTestUwp</AssemblyName>
    <DefaultLanguage>en-US</DefaultLanguage>
    <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
    <TargetPlatformVersion Condition=" '$(TargetPlatformVersion)' == '' ">10.0.18362.0</TargetPlatformVersion>
    <TargetPlatformMinVersion>10.0.16299.0</TargetPlatformMinVersion>
    <MinimumVisualStudioVersion>14</MinimumVisualStudioVersion>
    <FileAlignment>512</FileAlignment>
    <ProjectTypeGuids>{A5A43C5B-DE2A-4C0C-9213-0A381AF9435A};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <PlatformTarget>AnyCPU</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
    <PlatformTarget>AnyCPU</PlatformTarget>
    <DebugType>pdbonly</DebugType>
    <Optimize>true</Optimize>
    <OutputPath>bin\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
    <PlatformTarget>x86</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <OutputPath>bin\x86\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <NoWarn>;2008</NoWarn>
    <DebugType>full</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
    <PlatformTarget>x86</PlatformTarget>
    <OutputPath>bin\x86\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <Optimize>true</Optimize>
    <NoWarn>;2008</NoWarn>
    <DebugType>pdbonly</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM'">
    <PlatformTarget>ARM</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <OutputPath>bin\ARM\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <NoWarn>;2008</NoWarn>
    <DebugType>full</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM'">
    <PlatformTarget>ARM</PlatformTarget>
    <OutputPath>bin\ARM\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <Optimize>true</Optimize>
    <NoWarn>;2008</NoWarn>
    <DebugType>pdbonly</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM64'">
    <PlatformTarget>ARM64</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <OutputPath>bin\ARM64\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <NoWarn>;2008</NoWarn>
    <DebugType>full</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM64'">
    <PlatformTarget>ARM64</PlatformTarget>
    <OutputPath>bin\ARM64\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <Optimize>true</Optimize>
    <NoWarn>;2008</NoWarn>
    <DebugType>pdbonly</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
    <PlatformTarget>x64</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <OutputPath>bin\x64\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <NoWarn>;2008</NoWarn>
    <DebugType>full</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
    <PlatformTarget>x64</PlatformTarget>
    <OutputPath>bin\x64\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
    <Optimize>true</Optimize>
    <NoWarn>;2008</NoWarn>
    <DebugType>pdbonly</DebugType>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
  </PropertyGroup>
  <PropertyGroup>
    <RestoreProjectStyle>PackageReference</RestoreProjectStyle>
  </PropertyGroup>
  <ItemGroup>
    <Compile Include="UwpUnitTest.cs" />
    <Compile Include="Properties\AssemblyInfo.cs" />
    <EmbeddedResource Include="Properties\AppLauncherTestUwp.rd.xml" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform">
      <Version>6.2.9</Version>
    </PackageReference>
    <PackageReference Include="NUnit">
      <Version>3.12.0</Version>
    </PackageReference>
  </ItemGroup>
  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
    <VisualStudioVersion>14.0</VisualStudioVersion>
  </PropertyGroup>
  <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
       Other similar extension points exist, see Microsoft.Common.targets.
  <Target Name="BeforeBuild">
  </Target>
  <Target Name="AfterBuild">
  </Target>
  -->
</Project>

Thanks.

Sorry, we don't support UWP projects - https://www.ncrunch.net/support/frameworks

The closest we came to this was the old support we had for Windows Store Apps many years ago. This was pulled out after it became impossible to maintain. I don't expect the product will be going in this direction again. I recommend placing your code in cross-compatible projects instead that can be shared between standard .NET test projects and your UWP project. In this way you can at least have a part of your code testable under NCrunch.

Remco wrote:I recommend placing your code in cross-compatible projects instead that can be shared between standard .NET test projects and your UWP project. In this way you can at least have a part of your code testable under NCrunch.

Yeah I started out with this but eventually I got runtime errors when running the app (when using some win-specific async APIs such as file picker).

I will have to tackle it in some other way then, thanks.