Can't bind to 'FormGroup' since it isn't a known property of 'form' ----

Question

So i've been looking through internet and everyone says the same thing and that is i have to add imports in appmodule.ts but i've added imports and i still have the same error.

The error is:

Can't bind to 'FormGroup' since it isn't a known property of 'form'. ("
        <ion-col>

            <form novalidate [ERROR ->][FormGroup]="form" (ngSubmit)="addUser(form)">

                <ion-title class="center">Registr"): ng:///AppModule/RegisterPage.html@8:33

Register.html (https://ghostbin.com/paste/8wn3q)

Register.ts (https://ghostbin.com/paste/3sxcz)

Appmodule.ts (https://ghostbin.com/paste/wgmxd)

Answer 1

[FormGroup] should be [formGroup].

Notice the lowercase f.