TestProjectWithUnresolvedPlatformDependency.csproj

<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <TargetFramework>netcoreapp2.1</TargetFramework>
    <OutputType>Exe</OutputType>
    <AssetTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">$(AssetTargetFallback);dnxcore50</AssetTargetFallback>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="ThisIsNotARealDependencyAndIfSomeoneGoesAndAddsAProjectWithThisNameIWillFindThemAndPunishThem" Version="1.0.0" />
  </ItemGroup>
</Project>