aspnetcore/test/WebSites/FilesWebSite/project.json

{
    "dependencies": {
        "Microsoft.AspNet.Mvc": "6.0.0-*",
        "Microsoft.AspNet.Mvc.TestConfiguration": "1.0.0",
        "Microsoft.AspNet.Server.IIS": "1.0.0-*"
    },
    "frameworks": {
        "aspnet50": { },
        "aspnetcore50": { }
    },
    "webroot" :  "."
}