问题描述
我在执行 ng build --prod 时遇到以下错误。它在 ng build 中运行良好。
Error: src/app/app.component.html:1:1 - error NG8001: 'router-outlet' is not a known element:
1. If 'router-outlet' is an Angular component,then verify that it is part of this module.
2. If 'router-outlet' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
1 <router-outlet></router-outlet>
~~~~~~~~~~~~~~~
src/app/app.component.ts:5:16
5 templateUrl: './app.component.html',~~~~~~~~~~~~~~~~~~~~~~
Error occurs in the template of component AppComponent.
我在 app.module.ts 文件中使用 RouterModule
import { BrowserModule } from '@angular/platform-browser';
import { HttpClientModule } from '@angular/common/http';
import { NgModule,CUSTOM_ELEMENTS_SCHEMA,NO_ERRORS_SCHEMA } from '@angular/core';
import { Routes } from '@angular/router';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { DashboardComponent } from './dashboard/dashboard.component';
import {NgbDropdown,NgbModule} from '@ng-bootstrap/ng-bootstrap';
import { FilterPipe } from './dashboard/filter.pipe';
import {TimeAgoPipe} from 'time-ago-pipe';
import { LastseenDevicesComponent } from './modal/lastseen-devices/lastseen-devices.component';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
@NgModule({
declarations: [
AppComponent,DashboardComponent,TimeAgoPipe,FilterPipe,],imports: [
HttpClientModule,FormsModule,NgbModule,AppRoutingModule,BrowserModule,BrowserAnimationsModule,HttpClientModule,ReactiveFormsModule,bootstrap: [ AppComponent ],providers: [ NgbDropdown],//schemas: [ CUSTOM_ELEMENTS_SCHEMA,NO_ERRORS_SCHEMA]
//providers: [ NgbDropdown,DataService,UtilService]
})
export class AppModule { }
app-routing.module.ts 文件
import { NgModule } from '@angular/core';
import { Routes,RouterModule } from '@angular/router';
import { DashboardComponent } from './dashboard/dashboard.component';
const routes: Routes = [
{
path: '',pathMatch: 'full',component: DashboardComponent,},];
@NgModule({
imports: [RouterModule.forRoot(routes)],exports: [RouterModule],})
export class AppRoutingModule { }
这是 main.ts 个文件
import 'hammerjs';
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
import { environment } from './environments/environment';
if (environment.production) {
enableProdMode();
}
platformBrowserDynamic().bootstrapModule(AppModule).then(ref => {
if (window['ngRef']) {
window['ngRef'].destroy();
}
window['ngRef'] = ref;
}).catch(err => console.error(err));
app.component.ts 文件
import { Component,NgModule } from '@angular/core';
@Component({
selector: 'app-root',templateUrl: './app.component.html',styleUrls: ['./app.component.css'],})
export class AppComponent {
title = 'Project1';
}
app.component.html 文件只有 <router-outlet></router-outlet>。 Environment 文件夹有两个文件 environment.prod.ts 和 environment.ts 文件。
Angular.json 文件
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json","version": 1,"newProjectRoot": "projects","projects": {
"AirwatchProject1": {
"projectType": "application","schematics": {},"root": "","sourceRoot": "src","prefix": "app","architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser","options": {
"outputPath": "dist/Project1","index": "src/index.html","main": "src/main.ts","polyfills": "src/polyfills.ts","tsConfig": "tsconfig.app.json","aot": false,"assets": [
"src/favicon.ico","src/assets"
],"styles": [
"./node_modules/@angular/material/prebuilt-themes/indigo-pink.css","node_modules/bootstrap/dist/css/bootstrap.min.css","src/styles.css"
]
},"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts","with": "src/environments/environment.prod.ts"
}
],"optimization": true,"outputHashing": "all","sourceMap": false,"extractCss": true,"namedChunks": false,"aot": true,"extractLicenses": true,"vendorChunk": false,"buildOptimizer": true,"budgets": [
{
"type": "initial","maximumWarning": "2mb","maximumError": "5mb"
},{
"type": "anyComponentStyle","maximumWarning": "6kb","maximumError": "10kb"
}
]
}
}
},"serve": {
"builder": "@angular-devkit/build-angular:dev-server","disableHostCheck": true,"options": {
"browserTarget": "Project1:build"
},"configurations": {
"production": {
"browserTarget": "Project1:build:production"
}
}
},"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n","options": {
"browserTarget": "Project1:build"
}
},"test": {
"builder": "@angular-devkit/build-angular:karma","options": {
"main": "src/test.ts","tsConfig": "tsconfig.spec.json","karmaConfig": "karma.conf.js","../node_modules/bootstrap/dist/css/bootstrap.min.css","src/styles.css"
],"scripts": [
"node_modules/jquery/dist/jquery.min.js","node_modules/bootstrap/dist/js/bootstrap.bundle.min.js","/node_modules/popper.js/dist/umd/popper.min.js"
]
}
},"lint": {
"builder": "@angular-devkit/build-angular:tslint","options": {
"tsConfig": [
"tsconfig.app.json","tsconfig.spec.json","e2e/tsconfig.json","tsconfig.worker.json"
],"exclude": [
"**/node_modules/**"
]
}
},"e2e": {
"builder": "@angular-devkit/build-angular:protractor","options": {
"protractorConfig": "e2e/protractor.conf.js","devServerTarget": "Project1:serve"
},"configurations": {
"production": {
"devServerTarget": "Project1:serve:production"
}
}
}
}
}
},"defaultProject": "Project1","cli": {
"analytics": "80627-93f7438a70dd"
}
}
我该如何解决这个问题？
Angular CLI：10.0.5 节点：12.18.3
解决方法
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