Angular 5: "No provider for ControlContainer"
The ControlContainer is a abstract class which is extended by the AbstractFormGroupDirective inside the ReactiveFormsModule.
The error is thrown if you're using the ReactiveFormsModule and a <form>-element without a FormGroup bound to it via [formGroup]="myForm".
To fix this error you have to create a FormGroup and bind it to your form:
<form class="container" [formGroup]="myForm" (ngSubmit)="update()">Also make sure you have both the
FormsModuleand theReactiveFormsModuleadded to your module imports.
Turns out that the error had nothing to do with form not being bound to a formGroup, but me naming the receiving variable also formGroup. That confuses the heck out of Angular.
Just renaming this variable solves the issue.That is okay now:
<form class="container" (ngSubmit)="update()"> <app-form-group [fg]="additionalInformation"></app-form-group> <button type="submit" class="btn btn-primary">Submit</button></form>