Issue Error: NG0201: NgControl provider not found within NodeInjector

My creativity has hit a roadblock and I'm looking for some help. I decided to use the Reactive Forms Module in Angular, so I imported it into my app.module.ts as shown below:

import { ReactiveFormsModule } from '@angular/forms';

@NgModule({
  declarations: [
    AppComponent,
    ...
  ],
  imports: [
    ...
    ReactiveFormsModule,
    ...
  ],
  providers: [],
  bootstrap: [AppComponent]
})

Within my Component, I defined the following:

import { Component, OnInit} from "@angular/core";

import { FormControl, FormGroup } from '@angular/forms';

@Component({
    ...
})

export class SearchComponent implements OnInit{
    //Variables
    form: FormGroup;
    
    //Constructor
    constructor(){}

    //Methods
    ngOnInit(){
        this.form = new FormGroup({
            'title': new FormControl(null)
        });
    }

    showValue(){
        console.log(this.form.get('title'));
    }
}

Everything compiles without errors, but when trying to display it, the browser crashes with the following error in the Console: "core.js:6156 ERROR Error: NG0201: No provider for NgControl found in NodeInjector."

Any ideas on what might have gone wrong?

I would greatly appreciate any tips or suggestions.

Thank you!

Answer №1

In order for this to function properly, you will need to bring in the ReactiveFormsModule within your @NgModule, specifically the ViewsModule, as indicated by your query. The FormControl is only accessible through ReactiveFormsModule and not FormsModule.

import { ReactiveFormsModule, ... } from '@angular/forms';

@NgModule({
  imports: [..., ReactiveFormsModule, ...],
  ...
})
export class ViewsModule {...}

Answer №2

After some investigation, I realized that my error was due to not importing the ReactiveFormsModule in the specific "local" module... Make sure to add it to your "search-component.module.ts" file.

Answer №3

If you're encountering the same issue, make sure that both the formControlName attribute and the formGroup as a parent element are present. This problem might arise when using custom form controls in your project, so double-check all references like formControlName and

[formGroup]="myFormGroup"
.

Answer №4

Make sure to also include FormsModule in your app.module.ts file.

Answer №5

To enhance the functionality of your form container in the HTML, consider incorporating the *ngIf="!isLoading" directive. Within the corresponding .ts file, initialize isLoading as true at the beginning of the variable declarations. Once the form is created, update isLoading to false accordingly. Best regards.

Answer №6

Ensure to include the ReactiveFormsModule in the current module illustration (login.module.ts or a different module), rather than just in app.module.ts:

Answer №7

I encountered a similar issue and followed the recommendation to import the FormsModule, but unfortunately, the NG0201-Error persisted.

Upon further investigation, I realized my mistake:

Unknowingly, I had copied and pasted a portion of a component-template into a subcomponent of the one I was currently working on.

 <input [...] formControlName="shoppingAmount" [...] />

The problem arose when importing the module because angular recognized the formControlName as an actual directive rather than just an HTML attribute.

This led me to reference @svenson95's solution.

To resolve the error, I simply removed the unnecessary code snippet.

Answer №8

Insert it into your nearby module.

import { FormsModule } from '@angular/forms';
@NgModule({
  declarations: [],
  imports: [
    FormsModule
  ]
})
export class ... {}

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