title: Source or locally-built dependencies in project.json
body: <p>I'm trying to get a development environment set up for ASP.NET MVC 6 (i.e., I'd like to be able to debug and write PRs for MVC itself) using a sample application (using a project similar to the starter template), and I'm unclear on how to create the references using the dependencies section in <code>project.json</code>.  Here's mine:</p>
  
  <pre><code>{
      "webroot": "wwwroot",
      "version": "1.0.0-*",
      "dependencies": {
          "Microsoft.AspNet.Server.IIS": "1.0.0-beta3",
          "Microsoft.AspNet.Mvc": "6.0.0-beta3",
          "Microsoft.AspNet.StaticFiles": "1.0.0.0-beta3",
          "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-beta3",
          "Microsoft.AspNet.Diagnostics": "1.0.0-beta3"
      },
      "frameworks": {
          "aspnet50": { },
          "aspnetcore50": { }
      },
      "bundleExclude": [
          "node_modules",
          "bower_components",
          "**.kproj",
          "**.user",
          "**.vspscc"
      ],
      "exclude": [
          "wwwroot",
          "node_modules",
          "bower_components"
      ]
  }
  </code></pre>
  
  <p>I think this is pretty much what you get out of the box when you build an MVC app.  But I want to replace the reference to <code>Microsoft.AspNet.Mvc</code> 6.0.0-beta3 with something local - whether a locally build nupkg or a project file I'm not sure.  I've looked at the <a href="https://github.com/aspnet/Home/wiki/Project.json-file" rel="nofollow">explanation of project.json on the Aspnet wiki</a> and didn't find anything helpful, and the explanation of how kpm (folded into dnx for beta4 and beyond, right?) resolves versions seems focused on the version graph rather than where the things come from.</p>
  
  <p>What I have right now is the Mvc repo with the binaries/nupkgs built, I just don't know what to put in the dependencies section.</p>
  
  <pre><code>{
      ...
      "dependencies": {
          ...
          "Microsoft.Aspet.Mvc": ???
          ...
      }
      ...
  }
  </code></pre>