Angular 5: “No provider for ControlContainer”

Question

I have a little web app with Angular 5 and out of a sudden I am getting this strange error message in my browser console:

ncaught Error: Template parse error         


        

Answer 1

Every time I encounter this error I make the mistake of using reactive forms and using an input named @Input formGroup in one of my own components.

Error: Using reserved word for @Input

Component

@Input()
formGroup: FormGroup;

Using it

Solution 1: Use other word for @Input

Component

@Input()
form: FormGroup;

Using it

Solution 2: Alias the input

Component

@Input("form")
formGroup: FormGroup;

Using it