- [x] bug report
- [ ] feature request

Angular CLI: 1.5.0-rc.0
Node: 6.11.0
OS: win32 x64
Angular: 5.0.0-rc.2
... animations, common, compiler, compiler-cli, core, forms
... http, platform-browser, platform-browser-dynamic
... platform-server, router

@angular/cli: 1.5.0-rc.0
@angular-devkit/build-optimizer: 0.0.27
@angular-devkit/core: 0.0.20
@angular-devkit/schematics: 0.0.33
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.8.0-rc.0
@schematics/angular: 0.0.45
typescript: 2.5.3
webpack: 3.7.1

ERROR in ./src/app/app.module.ts
Module not found: Error: Can't resolve './app.component' in 'c:\temp\testproject\src\app'
resolve './app.component' in 'c:\temp\testproject\src\app'
  using description file: c:\temp\testproject\package.json (relative path: ./src/app)
    Field 'browser' doesn't contain a valid alias configuration
  after using description file: c:\temp\testproject\package.json (relative path: ./src/app)
    using description file: c:\temp\testproject\package.json (relative path: ./src/app/app.component)
      no extension
        Field 'browser' doesn't contain a valid alias configuration
        c:\temp\testproject\src\app\app.component doesn't exist
      .ts
        Field 'browser' doesn't contain a valid alias configuration
        c:\temp\testproject\src\app\app.component.ts doesn't exist
      .js
        Field 'browser' doesn't contain a valid alias configuration
        c:\temp\testproject\src\app\app.component.js doesn't exist
      as directory
        c:\temp\testproject\src\app\app.component doesn't exist
[c:\temp\testproject\src\app\app.component]
[c:\temp\testproject\src\app\app.component.ts]
[c:\temp\testproject\src\app\app.component.js]
[c:\temp\testproject\src\app\app.component]
 @ ./src/app/app.module.ts 9:0-47
 @ ./src/main.ts
 @ multi ./src/main.ts