Angular error: "Can't bind to 'ngModel' since it isn't a known property of 'input'"

Question

I'm using Angular 4 and I am getting an error in the console:

Can't bind to 'ngModel' since it isn't a known property of 'input'

How can I resolve this?

Answer 1

In order to use two-way data binding for form inputs you need to import the FormsModule package in your Angular module.

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

@NgModule({
    imports: [
         FormsModule      
    ]

---

EDIT

Since there are lot of duplicate questions with the same problem, I am enhancing this answer.

There are two possible reasons

• Missing FormsModule, hence Add this to your Module,

  import { FormsModule } from '@angular/forms';
  
  @NgModule({
      imports: [
          FormsModule      
      ]
  

• Check the syntax/spelling of [(ngModel)] in the input tag

Answer 2

This is a right answer. you need to import 'FormsModule'

first in app.module.ts

**

import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { NgModule  } from '@angular/core';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    FormsModule,
    ReactiveFormsModule ,
    BrowserModule,
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

** second in app.component.spec.ts

import { TestBed, async } from '@angular/core/testing';
import { RouterTestingModule } from '@angular/router/testing';
import { AppComponent } from './app.component';
import { FormsModule } from '@angular/forms';
describe('AppComponent', () => {
  beforeEach(async(() => {
    TestBed.configureTestingModule({
      imports: [
        RouterTestingModule,
        FormsModule
      ],
      declarations: [
        AppComponent
      ],
    }).compileComponents();
  }));

Best regards and hope will be helpful.

Answer 3

Your ngModel is not working because it's not a part of your NgModule yet.

You have to tell the NgModule that you have authority to use ngModel throughout your app, You can do it by adding FormsModule into your app.module.ts -> imports-> [].

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

@NgModule({

   imports: [ FormsModule ],       // HERE

   declarations: [ AppComponent ],
   bootstrap: [ AppComponent ]
 })

Answer 4

All the above mentioned solutions to the problem are correct. But if you are using lazy loading, FormsModule needs to be imported in the child module which has forms in it. Adding it in app.module.ts won't help.

Answer 5

I ran into this error when testing my Angular 6 App with Karma/Jasmine. I had already imported FormsModule in my top-level module. But when I added a new component that used [(ngModel)] my tests began failing. In this case, I needed to import FormsModule in my TestBed TestingModule.

beforeEach(async(() => {
  TestBed.configureTestingModule({
    imports: [
      FormsModule
    ],
    declarations: [
      RegisterComponent
    ]
  })
  .compileComponents();
}));

Answer 6

In app.module.ts add this:

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

@NgModule({
    declarations: [AppComponent],
    imports: [FormsModule],
})

Answer 7

Add FormsModule in your NgModule imports (hence ngModel is a part of FormsModule).

Note it can be AppModule or feature module loaded lazily via lazy loading.

imports: [
   ...,
   FormsModule,
   ...
]

Answer 8

You should verify following things if the two way binding does not work.

In html the ngModel should be called this way. There is no dependency on other attribute of the input element

<input [(ngModel)]="inputText">

Make Sure FormsModule is imported into the modules file app.modules.ts

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

@NgModule({
    declarations: [
        AppComponent,
        HomeComponent // suppose, this is the component in which you are trying to use two ay binding
    ],
    imports: [
        BrowserModule,
        FormsModule,
        // other modules
],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

Make sure the component in which you are trying to use ngModel for two way binding is added in the declarations of the. Code added in the previous point #2

This is everything that you need to do to make the two way binding using ngModel work, this is validated up to angular 9

Answer 9

After spending hours on this issue found solution here

import { FormsModule, ReactiveFormsModule } from '@angular/forms';
    
@NgModule({
    imports: [
         FormsModule,
         ReactiveFormsModule      
    ]
})

Answer 10

The Answer for me was wrong spelling of ngModel. I had it written like this : ngModule while it should be ngModel.

All other attempts obviously failed to resolve the error for me.

Answer 11

I tried all the thing that are mentioned above, but still it is not working.

but finally I found the issue in Angular site.Try to import formModule in module.ts thats it.

Answer 12

Try adding

ngModel in module level

The code is same as the above

Answer 13

Update with Angular 7.x.x, encounter the same issue in one of my modules.

If it lies in your independent module, add these extra modules:

import { CommonModule } from "@angular/common";
import { FormsModule } from "@angular/forms";

@NgModule({
  imports: [CommonModule, FormsModule], // the order can be random now;
  ...
})

If it lies in your app.module.ts, add these modules:

import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';

@NgModule({
  imports:      [ FormsModule, BrowserModule ], // order can be random now
  ...
})

A simple demo to prove the case.

Answer 14

In my case I added the missing import, which was the ReactiveFormsModule.

Answer 15

If you want to use two-way data binding for form inputs you need to import theFormsModule package in your Angular module. For more info see the Angular 2 official tutorial here and the official documentation for forms

in the app.module.ts add below lines :

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

[...]

@NgModule({
  imports: [
    [...]
    FormsModule
  ],
  [...]
})

Answer 16

In my case I misspelled , I was referring as ngmodel istead of ngModel :) Hope It helps!

Expected - [(ngModel)] Actual - [(ngmodel)]

Answer 17

import form module in app.module.ts.

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


@NgModule({
  declarations: [
    AppComponent,
    ContactsComponent
  ],
  imports: [
    BrowserModule,HttpModule,FormsModule     //Add here form  module
  ],
  providers: [],
  bootstrap: [AppComponent]
})

In html:

<input type="text" name="last_name" [(ngModel)]="last_name" [ngModelOptions]="{standalone: true}" class="form-control">

Answer 18

in angular 7, you have to import "ReactiveFormsModule".

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

I solved this issue by this import.It would help you.

Answer 19

first import FormsModule and then use ngModel in your component.ts

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

@NgModule({
 imports: [ 
            FormsModule  
          ];

HTML Code:

<input type='text' [(ngModel)] ="usertext" />

Answer 20

If even after importing the formsmodule the problem persists, check that your Input does not have a "name" attribute with value equal to another input on page.

Answer 21

In my case, during a lazy-loading conversion of my application I had incorrectly imported the RoutingModule instead of my ComponentModule inside app-routing.module.ts