aspnetcore/test/Microsoft.AspNetCore.Mvc.TestCommon/project.json

{
  "version": "1.0.0-*",
  "shared": "**/*.cs",
  "frameworks": {
    "net451": {},
    "dotnet5.4": {
      "dependencies": {
        "System.Runtime": "4.1.0-*"
      }
    }
  }
}