Angular 2: formGroup expects a FormGroup instance. Please pass one in

Question

I am creating a form in Angular 2. My goal is to get data from the API and pass it into the form for editing purposes. However, I am running into this error:

Answer 1

I have received the same error, initialize error, but it was the result of a typo.

Instead of typing ngOnInit, I wrote ngOninit (must be capital I)

but the error was same, group initialization, it's difficult to time the solution for these kinds of typo error, so I thought this might be useful for others in the future.