未捕获的错误：模块“AppModule”声明了意外的模块“FormsModule”。请添加@pipe/@指令/@组件注释

Question

import { Component } from '@angular/core';
export class Hero {
    id: number;
    name: string;
}
@Component({
    selector: 'app-root',
    template: `
        <h1>{{title}}</h1>
        <h2>{{hero.name}}  details!</h2>
        <div><label>id: </label>{{hero.id}}</div>
        <div><label>Name: </label>
            <input [(ngModel)]="hero.name" placeholder="Name">
        </div>
    `,
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    title = 'Tour of Heroes';
    hero: Hero = {
        id: 1,
        name: 'Windstorm'
    };
}

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

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

未捕获的错误：模块“AppModule”声明了意外的模块“FormsModule”。请添加@pipe/@指令/@组件注释。

Answer 1

formsmodule应添加到导入数组而不是声明数组。

• Imports数组用于导入模块，如BrowserModule、FormsModule、httpModule
• 声明数组用于组件、管道、指令

参考以下更改：

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