title: One or more packages are incompatible with .NETStandard,Version=v1.5
body: <p>I created a new .NET Core Class Library and added a Nuget package from an internal company Nuget server. I began getting the following error:</p>
  
  <blockquote>
    <p>Package XXXX is not compatible with netstandard1.5
    (.NETStandard,Version=v1.5). Package XXXX 
    1.0 supports: net45 (.NETFramework,Version=v4.5) One or more packages are incompatible with .NETStandard,Version=v1.5.</p>
  </blockquote>
  
  <p>I updated the project.json file to look like this but the same error persists.</p>
  
  <pre><code>{
    "version": "1.0.0-*",
  
    "dependencies": {
      "XXXXX": "1.0.0",
      "NETStandard.Library": "1.5.0-rc2-24027"
    },
  
    "frameworks": {
      "netstandard1.5": {
        "imports": [
          "dnxcore50",
          "portable-net45+win8"
        ]
      }
    }
  }
  </code></pre>
  
  <p>Does anyone have insight on this?</p>