Nuget Package won't install in UAP - nuget

Question

I'm trying to create a custom nuget package out of one of my projects. When I try to install it into the test project that references it, I receive this error:
Package "package" 1.0.5 is not compatible with uap10.0.15063 (UAP,Version=v10.0.15063). Package "package" 1.0.5 supports: net (.NETFramework,Version=v0.0)
This obviously isn't the case because the test project can run fine referencing the Project itself.
I'm building the nuget package based on my nuspec file:
<?xml version="1.0"?>
<package >
<metadata>
<id>Project</id>
<version>1.0.0</version>
<title>Project</title>
<authors>company</authors>
<owners>company</owners>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<description>desc</description>
<copyright>cp</copyright>
<dependencies>
<group targetFramework="uap ">
<dependency id="Logging" version="1.0.0" exclude="Build,Analyzers" />
<dependency id="Microsoft.NETCore" version="5.0.0" exclude="Build,Analyzers" />
<dependency id="Microsoft.NETCore.Portable.Compatibility" version="1.0.0" exclude="Build,Analyzers" />
<dependency id="NuGet.Build" version="2.12.0" exclude="Build,Analyzers" />
<dependency id="NuGet.CommandLine" version="4.1.0" exclude="Build,Analyzers" />
</group>
</dependencies>
</metadata>
<files>
<file src="bin\Release\*.dll" target="lib" />
</files>
"Logging" is also a custom nuget package I created from the .csproj file of another project.
I've tried removing the tag, and also tried renaming the targetFramework="uap", none of that works.
What could be wrong and what can I try to get this working?

Answer 1

The target doesn't just rely on the NuSpec file, it would depend on the C# project and the dll itself. Go to:
Project> Rightclick> Properties> TargetFramework>
Set it to .Net or whatever. Also, change your output type to a console application rather than a windows application, if that is doable.
Also, you should create the nuspec file using:
Nuget spec < ProjectPath >
This gives us the advantage to just change the metadata for .csproj files, and copies that into the package metadata automatically.
I'm not a 100% sure if this will fix it, but this should be what needs to be done. Best of luck!