本文介绍了执行ng build --prod时，"router-outlet"不是已知元素的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
执行 ng build --prod 时出现错误.在 ng build 中可以正常工作.
I am getting below error while doing ng build --prod. It works fine in ng build.
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.
我正在 app.module.ts 文件
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,
BrowserModule,
BrowserAnimationsModule,
FormsModule,
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 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文件仅具有< router-outlet></router-outlet> . Environment 文件夹包含两个文件 environment.prod.ts 和 environment.ts 文件.
app.component.html file only has <router-outlet></router-outlet>. Environment folder has two files environment.prod.ts and environment.ts file.
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",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.spec.json",
"karmaConfig": "karma.conf.js",
"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"
],
"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?
Angular CLI:10.0.5节点:12.18.3
推荐答案
将 RouterModule 导入模块，在该模块中声明给出错误的组件.对于与HTML中的例程相关的任何内容，请导入 RouterModule
Import the RouterModule in the module where you declare the component that gives the error. For anything related to routine in the HTML, import the RouterModule
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