我完全按照以下步骤创建了简单的角度库:
1. ng new pwo-countup-library --create-application=false
2. ng g library countup
3. ng g application countup-test
4. ng build countup
5。将CountupModule导入到app.module.ts
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { CountupModule } from 'countup';
@NgModule({
declarations: [
AppComponent,
],
imports: [
BrowserModule, CountupModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
@Component({
selector: 'app-root',
template: `
<lib-countup></lib-countup>
`,
styleUrls: ['./app.component.css']
})
export class AppComponent {
title = 'countup-test';
}
countup.component看起来像这样:
import { Component, OnInit } from '@angular/core';
@Component({
selector: 'lib-countup',
template: `
<p>
countup works!
</p>
`,
styles: []
})
export class CountupComponent implements OnInit {
constructor() { }
ngOnInit(): void {
}
}
这是countup.module:
import { NgModule } from '@angular/core';
import { CountupComponent } from './countup.component';
@NgModule({
declarations: [CountupComponent],
imports: [
],
exports: [CountupComponent]
})
export class CountupModule { }
我在app.component模板中遇到错误:
lib-countup
不是已知元素
有人可以帮助我吗? 这与问题https://stackoverflow.com/questions/62315080/selector-is-not-a-known-element-angular-9-custom-library[1]中的问题完全相同,但是到目前为止,没有人知道这个问题的答案。谢谢!
答案 0 :(得分:0)
您正尝试将组件与选择器'lib-countup'一起使用,该选择器不存在。您必须在库中使用此类选择器创建组件,然后将其添加到库模块的导出数组中
@NgModule({
declarations: [YourComponent],
exports: [YourComponent] <--- here
imports: [],
providers: []
})
export class CountupModule{ }