when update rc5 to rc6, the lazy-load module throw a error

the lazy load module BoardModule need NgIf directives, so I import CommonModule, the AppModule aslo import BrowserModule. then throw below error:

Error: BrowserModule has already been loaded. If you need access to common directives such as NgIf and NgFor from a lazy loaded module, import CommonModule instead

It is a bug or use fail? thx

• Angular version: 2.0.0-rc.6
• Browser: Chrome 52
• Language: TypeScript 1.8.10

[doxiaodong]

use BrowserModule in rootModule and others use CommonModule from ‘@angular/common’

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