Getting Error: Can't bind to 'ngModel' since it isn't a known property of 'input' despite importing FormsModule

Question

我已经在 app.module.ts 中导入了 FormsModule，但我仍然收到此错误。

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

我已经看过类似的帖子，但我仍然无法找到解决方案。

app.module.ts

 import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import {FormsModule} from '@angular/forms';
import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

app.component.ts

import { Component } from '@angular/core';
import {FormsModule} from '@angular/forms';
import {NgModule  } from "@angular/core";
import { BrowserModule } from '@angular/platform-browser';

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

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html'


})
export class AppComponent {
}

app.component.html

<input type=radio name="gender" value="Mr" [(ngModel)]="gender">Male
<input type=radio name="gender" value="Mrs" [(ngModel)]="gender">Female
{{"Hello " + gender}}

Answer 1

像这样尝试：

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { AppComponent } from './app.component';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        FormsModule,
        BrowserModule
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

app.component.ts

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html'
})
export class AppComponent {
    gender: string;
}

app.component.html

<input type=radio name="gender" value="Mr" [(ngModel)]="gender">Male
<input type=radio name="gender" value="Mrs" [(ngModel)]="gender">Female
{{"Hello " + gender}}

Getting Error: Can't bind to 'ngModel' since it isn't a known property of 'input' despite importing FormsModule

Getting Error: Can't bind to 'ngModel' since it isn't a known property of 'input' despite importing FormsModule

angular2-forms

angular2-directives

angular