Uncaught Error: Unexpected directive 'NavComponent' imported by the module 'AppModule'. Please add a @NgModule annotation

Question

我在里面有一个自定义组件 (nav)。

当我使用它时，webpack 编译成功结束但chrome 抛出以下错误：

Uncaught Error: Unexpected directive 'NavComponent' imported by the module 'AppModule'. Please add a @NgModule annotation.

这是我的 AppModule：

>

 import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RouteReuseStrategy } from '@angular/router';

import { IonicModule, IonicRouteStrategy } from '@ionic/angular';
import { SplashScreen } from '@ionic-native/splash-screen/ngx';
import { StatusBar } from '@ionic-native/status-bar/ngx';

import { AppComponent } from './app.component';
import { AppRoutingModule } from './app-routing.module';
import { NavComponent } from './nav/nav.component';

@NgModule({
  declarations: [AppComponent ],
  entryComponents: [],
  imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule, NavComponent],
  providers: [
    StatusBar,
    SplashScreen,
    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}

Answer 1

如果您的 NavComponent 是 @Component 或 @Directive，您需要将其添加到 declarations，而不是 imports

...
declarations: [ AppComponent, NavComponent ],
...

Uncaught Error: Unexpected directive 'NavComponent' imported by the module 'AppModule'. Please add a @NgModule annotation

Uncaught Error: Unexpected directive 'NavComponent' imported by the module 'AppModule'. Please add a @NgModule annotation

android

ionic-framework

angular

ionic4