title: Npgsql 3.1.0-beta does support not support framework DNXCore, Version=v.5.0
body: <p>I’m starting a new ASP.NET Core 1.0 project with goal to host it on a Linux machine. I’m trying to use the PostgreSQL data provider Npgsql 3.1.0-beta, which support CoreCLR (.netstandard13) but I get the follow error message:</p>
  
  <p><em>NU1002: The dependency Npgsql 3.1.0-beta0001 in project XXX does not support framework DNXCore,Version=v5.0</em></p>
  
  <p>Here my proect.json:</p>
  
  <pre><code>{
    "version": "1.0.0-*",
    "compilationOptions": {
      "emitEntryPoint": true
    },
  
    "dependencies": {
      "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
      "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
      "Npgsql": "3.1.0-beta0001"
    },
  
    "commands": {
      "web": "Microsoft.AspNet.Server.Kestrel"
    },
  
    "frameworks": {    
      "dnxcore50": { }
    },
  
    "exclude": [
      "wwwroot",
      "node_modules"
    ],
    "publishExclude": [
      "**.user",
      "**.vspscc"
    ]
  }
  </code></pre>
  
  <p>Sorry the new .NET Core world is pretty new to me. Thanks, Stefan</p>