angular2报错can't bin to 'ngforof'

原因：没有export CommonModule

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { SharedModule } from '../../shared/shared.module'
import { CmfModule } from '../../../../projects/cmf/src/public_api'
import { FieldComponent } from './field/index';

@NgModule({
    declarations: [FieldComponent],
    imports: [CommonModule, FormsModule, SharedModule, CmfModule],
    exports: [CommonModule,FieldComponent],
    providers: [],
})
export class UserSharedModule { }