title: Unable to resolve error when try dotnet restore multi project solution
body: <p>I've got a solution that builds locally and I've created a new build and added one step to it </p>
  
  <pre><code>dotnet restore
  </code></pre>
  
  <p>I'm getting this error message:</p>
  
  <pre><code>    ... OTHER SUCCESSFUL INSTALLATIONS ...
      log  : Installing Microsoft.Extensions.FileProviders.Abstractions 1.0.0.
      log  : Installing Microsoft.Extensions.Configuration.Abstractions 1.0.0.
      log  : Installing Microsoft.Extensions.DependencyInjection.Abstractions 1.0.0.
      log  : Writing lock file to disk. Path: C:\a\1\s\Wedding.WebApp\project.lock.json
      log  : C:\a\1\s\Wedding.WebApp\project.json
      log  : Restore failed in 13722ms.
      Errors in C:\a\1\s\Wedding.WebApp\project.json
          Unable to resolve 'Wedding.Application' for '.NETFramework,Version=v4.6.1'.
          Unable to resolve 'Wedding.Common' for '.NETFramework,Version=v4.6.1'.
          Unable to resolve 'Wedding.WebApp.Setup' for '.NETFramework,Version=v4.6.1'.
  </code></pre>
  
  <p>Its refering to the three other projects that my main web project references.</p>
  
  <p>This is my project.json</p>
  
  <pre><code>    {
        "dependencies": {
          "Microsoft.AspNetCore.Diagnostics": "1.0.0",
          "Microsoft.AspNetCore.Mvc": "1.0.1",
          "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
          "Microsoft.AspNetCore.Server.Kestrel": "1.0.1",
          "Microsoft.AspNetCore.StaticFiles": "1.0.0",
          "Microsoft.Extensions.Configuration.Json": "1.0.0",
          "Microsoft.Extensions.Logging.Console": "1.0.0",
          "Microsoft.Extensions.Logging.Debug": "1.0.0"
        },
  
        "tools": {
          "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
          "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final"
        },
  
        "frameworks": {
          "net461": {
            "dependencies": {
              "Wedding.Application": {
                "target": "project"
              },
              "Wedding.Common": {
                "target": "project"
              },
              "Wedding.WebApp.Setup": {
                "target": "project"
              }
            }
          }
        },
  
        "buildOptions": {
          "emitEntryPoint": true,
          "preserveCompilationContext": true
        },
  
        "publishOptions": {
          "include": [
            "wwwroot",
            "web.config"
          ]
        },
  
        "scripts": {
          "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
        }
      }
  </code></pre>
  
  <p>Does anyone know why this might be erroring?</p>