After creating an Angular 16.1.0 application and a custom pipe, I encountered error messages during compilation. Here are the steps I took:
Ran
ng new exampleProjectGenerated a pipe using
ng generate pipe powerModified the content of app.component.html:
<router-outlet></router-outlet> {{ 4 | power }}Edited the content of power.pipe.ts:
import { Pipe, PipeTransform } from '@angular/core'; @Pipe({ name: 'power' }) export class PowerPipe implements PipeTransform { transform(value: number, exponent: number): number { return Math.pow(value, exponent); } }Started the server with
ng s
Error messages received:
Error: src/app/app.component.html:2:8 - error NG8004: No pipe found with name 'power'.
2 {{ 4 | power}}
~~~~~~
src/app/app.component.ts:5:16
5 templateUrl: './app.component.html',
~~~~~~~~~~~~~~~~~~~~~~
Error occurs in the template of component AppComponent.
package.json:
{
"name": "exampleProject",
"version": "0.0.0",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"watch": "ng build --watch --configuration development",
"test": "ng test"
},
"private": true,
"dependencies": {
"@angular/animations": "^16.1.0",
"@angular/common": "^16.1.0",
"@angular/compiler": "^16.1.0",
"@angular/core": "^16.1.0",
"@angular/forms": "^16.1.0",
"@angular/platform-browser": "^16.1.0",
"@angular/platform-browser-dynamic": "^16.1.0",
"@angular/router": "^16.1.0",
"rxjs": "~7.8.0",
"tslib": "^2.3.0",
"zone.js": "~0.13.0"
},
"devDependencies": {
"@angular-devkit/build-angular": "^16.1.3",
"@angular/cli": "~16.1.3",
"@angular/compiler-cli": "^16.1.0",
"@types/jasmine": "~4.3.0",
"jasmine-core": "~4.6.0",
"karma": "~6.4.0",
"karma-chrome-launcher": "~3.2.0",
"karma-coverage": "~2.2.0",
"karma-jasmine": "~5.1.0",
"karma-jasmine-html-reporter": "~2.1.0",
"typescript": "~5.1.3"
}
}
app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { PowerPipe } from './power.pipe';
@NgModule({
declarations: [
AppComponent,
PowerPipe
],
imports: [
BrowserModule,
AppRoutingModule
],
providers: [],
bootstrap: [AppComponent]
} export class AppModule { }
How can I resolve the NG8004 error?