为什么我的Nuget-lib在.NetStandard 2.0中不可用？

Question

我用下面的Nuspec创建了Nuget "Uplink.NET“：

<?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>

我可以将其添加到NetStandard2.0类库中，但会将其添加为包含以下条目的PackageReference：

<PackageReference Include="uplink.NET" Version="1.3.1">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>

我现在不能访问我的库中的对象。但同样的Nuget正在与Xamarin.Android和UWP一起工作。

有人能帮上忙吗？

Answer 1

是，当包是开发依赖项时，如our NuGet docs say

如果使用PackageReference (NuGet 4.8+)，则此标志还意味着它将从编译中排除编译时资产。

A linked page进一步解释：

当package的developmentDependency为true时，将PrivateAssets设置为All，将ExcludeAssets设置为编译项目中的PackageReference项，而：

• 通过VS NuGet UI或PMC
• 安装软件包执行dotnet添加软件包命令将现有项目从packages.config迁移到PackageReference

即使developmentDependency是真的，也不要做任何事情，把它当做普通的PackageReference，而：

为了将package

• Upgrading现有VS实例从以前的版本添加到最新版本(开始支持developmentDependency)

)，

• 在项目中手动添加PackageReference项