我正在使用Angular 4和Angular Material 2.对于以下代码:
<form>
  <md-form-field>
    <input mdInput [ngModel]="userName" placeholder="User" [formControl]="usernameFormControl">
    <md-error *ngIf="usernameFormControl.hasError('required')">
      This is <strong>required</strong>
    </md-error>
    <input mdInput [ngModel]="password" placeholder="Password" [formControl]="passwordFormControl">
    <md-error *ngIf="passwordFormControl.hasError('required')">
      This is <strong>required</strong>
    </md-error>
    <button md-raised-button color="primary" [disabled]="!usernameFormControl.valid || !passwordFormControl.valid">Login</button>
  </md-form-field>
</form>
我收到一个错误:
模板解析错误:'md-form-field'不是已知元素:1.如果'md-form-field'是Angular组件,则验证它是否是此模块的一部分.2.如果'md-form-field'是Web组件,则将'CUSTOM_ELEMENTS_SCHEMA'添加到此组件的'@NgModule.schemas'以禁止显示此消息.("[错误 - >]
你能不能帮我解决我失踪的地方?
以下是我app.module.ts导入材料模块的代码:
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { HttpModule } from '@angular/http';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { LoginComponent …