What causes the “control.registerOnChange is not a function” error

Question

I have a form using the reactive form approach. The form is created as follow in my pug:

form([formGroup]=\'form\', novalidate=\'\', (ngSubmit)=\'postSurvey(         


        

Answer 1

This error also appears when we use a reactive form inside ng-template in conjunction with *ngIf.

To avoid this use ng-container and do not use ngElse.