Referencing .NetCore Class Library in .NetCore Web Application

Question

I have created a .NetCore Class Library which I have tested in same solution with .NetCore Console Application (and it works just fine), however when I try referencing it inside another (ASP.NET Core Web Application) solution as a NuGet package I always get a error

NU1002 The dependency YoutubeExtractorCore 0.0.6 does not support framework .NETCoreApp,Version=v1.0.

I have added the netcoreapp1.0 in the class library project.json, which looks like this:

{
  "title": "YoutubeExtractorCore",
  "description": ".NET Core library used for extracting information about Youtube videos",
  "version": "0.0.6-*",

  "dependencies": {
    "NETStandard.Library": "1.6.0",
    "Newtonsoft.Json": "9.0.1"
  },

  "frameworks": {
    "netcoreapp1.0": {
      "imports": "dnxcore50",
      "dependencies": {
        "Microsoft.NETCore.App": {
          "type": "platform",
          "version": "1.0.0"
        }
      }
    },
    "netstandard1.6": {
      "imports": "dnxcore50"
    }
  }
}

I spent this afternoon trying to fix the problem but I cannot even understand why this error occurs.

are you sure asp.net core app is using .net core app 1.0 or lesser version? — Venkata Dorisala
– Venkata Dorisala, Commented Sep 10, 2016 at 17:28
@Venky I think it is 1.0, but i am not sure anymore. Anyway, here is ASP.NET Core project.json, targeting the netcoreapp1.0 framework. link I added the netstandard1.6 framework too, since I wasn't sure if it is needed or not. — Kubko Piško
– Kubko Piško, Commented Sep 10, 2016 at 17:57

Kubko Piško · Accepted Answer · 2016-09-10 19:41:18Z

1

I finally figured out what was causing the problem. The NuGet package I created was packed with nuget.exe manually, and for some reason did not have the frameworks and their dependencies listed. I fixed the package by executing dotnet pack on the class library and this produced correcly packed NuGet package.

answered Sep 10, 2016 at 19:41

Kubko Piško

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