Why is my Nuget-lib not available from .NetStandard 2.0? - nuget

Question

I've created the Nuget "Uplink.NET" with the following Nuspec:
<?xml version="1.0" encoding="utf-8"?>
<package xmlns="http://schemas.microsoft.com/packaging/2013/01/nuspec.xsd">
<metadata>
<id>uplink.NET</id>
<version>1.3.1</version>
<title>Connector to the storj-network</title>
<authors>TopperDEL,Storj Labs Inc.</authors>
<owners>TopperDEL,Storj Labs Inc.</owners>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<projectUrl>https://github.com/TopperDEL/uplink.net</projectUrl>
<iconUrl>https://storj.io/press-kit/Storj-symbol.png</iconUrl>
<description>This library provides access to the secure and decentralised Storj-network. It allows you to:
- create and delete buckets
- upload and download files
It is - like Storj itself - open source and developed on GitHub.</description>
<releaseNotes>Initial release</releaseNotes>
<copyright>(c) 2019 TopperDEL, Storj Labs Inc.</copyright>
<tags>storj tardigrade storage decentralised secure bucket file xamarin android</tags>
<repository type="git" url="https://github.com/TopperDEL/uplink.net.git" />
<contentFiles>
<files include="uplink.NET\bin\release\netstandard2.0\storj_uplink.dll" buildAction="None" copyToOutput="true" flatten="true" />
</contentFiles>
</metadata>
<files>
<file src="uplink.NET.targets" target="build\uplink.NET.targets" />
<file src="uplink.NET.Droid\bin\Release\uplink.NET.Droid.dll" target="lib\MonoAndroid7.0\uplink.NET.Droid.dll" />
<file src="uplink.NET.Droid\bin\Release\uplink.NET.Droid.dll" target="lib\MonoAndroid7.1\uplink.NET.Droid.dll" />
<file src="uplink.NET.Droid\bin\Release\uplink.NET.Droid.dll" target="lib\MonoAndroid8.0\uplink.NET.Droid.dll" />
<file src="uplink.NET.Droid\bin\Release\uplink.NET.Droid.dll" target="lib\MonoAndroid8.1\uplink.NET.Droid.dll" />
<file src="uplink.NET.Droid\bin\Release\uplink.NET.Droid.dll" target="lib\MonoAndroid9.0\uplink.NET.Droid.dll" />
<file src="uplink.NET\bin\Release\netstandard2.0\uplink.NET.dll" target="lib\netstandard2.0\uplink.NET.dll" />
<file src="uplink.NET\bin\Release\netstandard2.0\uplink.NET.dll" target="netstandard2.0\uplink.NET.dll" />
<file src="uplink.NET\bin\Release\netstandard2.0\uplink.NET.dll" target="lib\uap10.0.16299\uplink.NET.dll" />
<file src="uplink.NET\storj_uplink.dll" target="storj_uplink.dll" />
</files>
</package>
I can add it to a NetStandard2.0 class library, but it gets Added as a PackageReference with the following entries:
<PackageReference Include="uplink.NET" Version="1.3.1">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
I now cannot access the objects within my lib. But the same Nuget is working with Xamarin.Android and UWP.
Can someone help with this?

Answer 1

Yes, when a package is a development dependency, as our NuGet docs say:
With PackageReference (NuGet 4.8+), this flag also means that it will
exclude compile-time assets from compilation.
A linked page further explains:
when package's developmentDependency is true, then set PrivateAssets
to All and ExcludeAssets to Compile on PackageReference item in
project, while:
Installing package through VS NuGet UI or PMC
Executing dotnet add
package command Migrating existing project from packages.config to
PackageReference
Even though developmentDependency is true, don't do anything treat it as normal
PackageReference, while:
Manually adding PackageReference item in project to add a package
Upgrading existing VS instance from previous version to latest (which started supporting developmentDependency)