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[ ] feature request
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Current behavior
Using the latest version of the Angular-CLI and Angular 2.3.0, using ng serve or any other means to start the app causes Webpack to stop building due to this error:

can't resolve module ./directives from C:/Code Projects/Web/request-it/node_modules/@angular/forms/src/form_providers.d.ts

Expected behavior
I would run ng serve and my project would load on port 4200.

Minimal reproduction of the problem with instructions

1. Create a new Angular-CLI (Beta 22-1) project using ng new
2. Upgrade all Angular dependencies to v2.3.0
3. Run ng serve and it will fail quickly.

What is the motivation / use case for changing the behavior?
I need to take advantage of the Zone.js and RxJS upgrades that were made.

Please tell us about your environment:

• Windows 10 Enterprise
• VS Code
• NPM v4.0.5
• Node v7.0
• Webpack Dev Server (Build into Angular-CLI)

• Angular version: 2.0.X

v2.3.0

• Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]
  N/A

• Language: [all | TypeScript X.X | ES6/7 | ES5]
  TypeScript v2.1.4

• Node (for AoT issues): node --version =
  N/A