Angular 2 RC-4 forms, Type 'FormGroup' is not assignable to type 'typeof FormGroup'

I am having some trouble with Angular 2 forms, I succesfully implemented a few forms in my project and when I try to add this one, i get and error from my Angular Cli: Type 'FormGroup' is not assignable to type 'typeof FormGroup'.

Anyone met with this ?

Here is my component code:

import { Component } from '@angular/core';
import {AngularFire} from "angularfire2/angularfire2";

import {DataService} from "../../shared/data.service";
import {FormGroup, FormBuilder, Validators} from "@angular/forms";

@Component({
moduleId: module.id,
selector: 'tm-address-book',
templateUrl: 'address-book.component.html',
styleUrls: ['address-book.component.css'],
providers: [DataService]
})
export class AddressBookComponent {
myAddressForm = FormGroup;
addressbook: Array<any>;

constructor(private af: AngularFire,
private formBuilder: FormBuilder,
private dataService: DataService) {
af.database.list('Addressbook').subscribe(address => {
this.addressbook = address;
console.log(this.addressbook);
});

this.myAddressForm = formBuilder.group({
'companyName': ['', Validators.required],
'street': ['', Validators.required],
'city': ['', Validators.required],
'postCode': ['', Validators.required],
})
}


And here is the html form code:

<form [formGroup]="myAddressForm" (ngSubmit)="onSubmit()">
<div class="form-group">
<input type="text" class="form-control" formControlName="companyName" name="companyName" placeholder="Nazwa firmy">
</div>
<div class="form-group">
<input type="text" class="form-control" formControlName="street" placeholder="Ulica">
</div>
<div class="form-group">
<input type="text" class="form-control" formControlName="city" name="city" placeholder="Miejscowość">
</div>
<div class="form-group">
<input type="text" class="form-control" formControlName="postCode" name="postCode" placeholder="Kod pocztowy">
</div>
<button type="submit" class="btn btn-success waves-effect waves-light" data-toggle="collapse" data-target="#collapse1">
Dodaj
</button>
</form>

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