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NG01354 means an ngModel control inside a child component cannot register with the form directive in its parent component. To include that control in the parent form, expose the matching form directive through the child’s viewProviders: use NgForm for a template-driven form or FormGroupDirective for a reactive form. If the control should remain independent, mark it standalone instead.
Why Angular reports NG01354
Angular’s NG01354 documentation identifies the cause: NgModel injects ControlContainer with @Host(). That host boundary prevents the lookup from crossing a component boundary to find a form directive in the parent template.
As a result, the child’s control cannot register with the parent form. It is absent from the parent form’s value, validity, and submission state. This is a component-boundary registration issue, not necessarily a misspelled model binding.
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| What you want | Parent form type | Expose through the child’s viewProviders |
|---|---|---|
| Include the child control in the parent form | Template-driven form using NgForm |
ControlContainer mapped to NgForm |
| Include the child control in the parent form | Reactive form using [formGroup] |
ControlContainer mapped to FormGroupDirective |
| Keep the child control independent | Either | Set [ngModelOptions]="{standalone: true}" on the control; this opts it out rather than registering it with the parent |
Expose a template-driven parent form
If the parent uses a template-driven form, import ControlContainer and NgForm from @angular/forms. In the child component, add this provider:
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viewProviders: [{ provide: ControlContainer, useExisting: NgForm }]This makes the parent’s NgForm available as the child control’s container, allowing the control to participate in the parent form.
Expose a reactive parent form
If the parent uses a reactive form with [formGroup], import ControlContainer and FormGroupDirective from @angular/forms. In the child component, use:
viewProviders: [{ provide: ControlContainer, useExisting: FormGroupDirective }]Use the directive that matches the parent form. Angular’s guidance says this lets the parent see and validate the child controls normally.
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If the control is intentionally independent, add [ngModelOptions]="{standalone: true}" to that control. Standalone mode is an opt-out: it avoids registering the control with the parent form; it does not make the control part of that form.
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Check which component owns the form and control
- Use the NG01354 warning’s call stack to locate the
ngModelthat triggers the error. - Check whether the component containing the
<form>element also owns the input. If the input is in a child component, the component boundary is relevant. - Decide whether the control belongs in the parent form. If it does, expose the matching container with
viewProviders; if it does not, set the control to standalone.
The official Angular error entry identifies the page as Angular v22.2.1+sha-fa63bfa when accessed on October 7, 2026. The registration explanation and remedies above are documented there.
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