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nuget.net-corenuget-packagedotnet-cli

How to properly target a .net project into netcoreapp/netstandard?

I have a Class Library that is supposed to be packed into a nuget package. This is its current csproj:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFrameworks>netstandard1.6;net40;netcoreapp1.0</TargetFrameworks>
    <PackageId>FooPackage</PackageId>
    <PackageVersion>1.0.0</PackageVersion>
    <Authors>Jean Lourenço</Authors>
    <Title>FooPackage</Title>
    <Description>FooPackage</Description>
    <Copyright>Copyright 2017</Copyright>
    <PackageLicenseUrl>https://opensource.org/licenses/MIT</PackageLicenseUrl>
    <PackageProjectUrl>https://github.com/</PackageProjectUrl>
    <PackageReleaseNotes>Initial release</PackageReleaseNotes>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="System.ValueTuple" Version="4.3.1" />
  </ItemGroup>

I created it as a netstandard Class Library and then manually set the <TargetFrameworks> to its targets netstandard1.6;net40;netcoreapp1.0. Then I use dotnet pack to generate my .nupkg.

But when I try to use the package in a netcoreapp, this happens:

Package FooPackage 1.0.0 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package FooPackage 1.0.0 supports: net452 (.NETFramework,Version=v4.5.2) One or more packages are incompatible with .NETCoreApp,Version=v1.0.

This is the csproj of the consuming app:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp1.0</TargetFramework>
  </PropertyGroup>

</Project>

The net452 isn't even referenced directly into the <TargetFrameworks>, so I have no idea where that is coming from.

I'd like to know what I'm doing wrong and how to target those frameworks correctly.

Solution

  • Following the instructions on this thread all I had to do was:

    nuget.exe locals -clear all

    Seems like the nuget kept old references of the package because of the name.