project.json

{
  "dependencies": {
    "Microsoft.Dnx.Compilation.CSharp.Abstractions": "1.0.0-rc1-final"
  },
  "frameworks": {
    "dnx451": {
      "frameworkAssemblies": {
        "System.Runtime": "",
        "System.Collections": "",
        "System.Text.Encoding": "",
        "System.Threading.Tasks": ""
      }
    },
    "dnxcore50": {}
  }
}