没有导出成员Angular

[为什么红色波浪错误]

在视觉stdio错误
错误光幕

'“/Users/dev/pratice_workspace/quickstart/src/app/components/language.component”'没有导出成员'LangugeComponent'。 导入LangugeComponent

在Chrome控制台中出错

ZoneAwareError __zone_symbol__error：错误：（SystemJS）模块'AppModule'声明的意外值'undefined'错误：模块“AppModule”在SyntaxError.ZoneAwareError声明的意外值'undefined'

app.module.ts

import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { AppComponent } from './app.component'; import { LangugeComponent } from './components/language.component'; @NgModule({ imports: [BrowserModule], declarations: [AppComponent, LangugeComponent], bootstrap: [AppComponent] }) export class AppModule {} 

language.component.ts

 import { Component } from '@angular/core'; @Component({ selector: 'language', template: ` <h1>Hello</h1> `, }) export class LanguageComponent { name = 'Sandeep'; designation = 'SE' } 

Answer 1

看起来你在app.module.ts有错字

 import { LangugeComponent } from './components/language.component' declarations: [AppComponent, LangugeComponent]` 

应该

 import { LanguageComponent } from './components/language.component' declarations: [AppComponent, LanguageComponent]`