无法在 NgModule 中声明'TimeAgoPipe'，因为它不是当前编译的一部分

Question

在执行ng build --prod时，Angular 10中出现错误。它在ng build中工作。

ERROR in src/app/app.module.ts:44:5 - error NG6001: Cannot declare 'TimeAgoPipe' in an NgModule as it's not a part of the current compilation.
44     TimeAgoPipe,
~~~~~~~~~~~
node_modules/time-ago-pipe/time-ago.pipe.d.ts:3:22
3 export declare class TimeAgoPipe implements PipeTransform, OnDestroy {
~~~~~~~~~~~
'TimeAgoPipe' is declared here.

这是node_modules/time-ago-pipe/time-ago.pipe.d.ts内的文件

import { PipeTransform, NgZone, ChangeDetectorRef, OnDestroy } from "@angular/core";
import * as ɵngcc0 from '@angular/core';
export declare class TimeAgoPipe implements PipeTransform, OnDestroy {
private changeDetectorRef;
private ngZone;
private timer;
constructor(changeDetectorRef: ChangeDetectorRef, ngZone: NgZone);
transform(value: string): string;
ngOnDestroy(): void;
private removeTimer();
private getSecondsUntilUpdate(seconds);
static ɵfac: ɵngcc0.ɵɵFactoryDef<TimeAgoPipe, never>;
static ɵpipe: ɵngcc0.ɵɵPipeDefWithMeta<TimeAgoPipe, "timeAgo">;
}
//# sourceMappingURL=time-ago.pipe.d.ts.map

这就是我在app.module.ts文件中使用它的方式

import { NgModule } from '@angular/core';
import {TimeAgoPipe} from 'time-ago-pipe';
@NgModule({
declarations: [
TimeAgoPipe
],
imports: [
FormsModule,
],
entryComponents: [LastseenDevicesComponent],
bootstrap: [ AppComponent ],
})
export class AppModule { }

我该怎么解决这个问题？

Answer 1

此软件包未维护3年，我建议使用https://www.npmjs.com/package/ngx-pipes#timeago您可以在此处找到有关此问题的更多详细信息https://github.com/AndrewPoyntz/time-ago-pipe/issues/33

这个解决方案对的一些人有效

...
import { TimeAgoPipe } from 'time-ago-pipe';
@Pipe({
name: 'timeAgo',
pure: false
})
export class TimeAgoExtendsPipe extends TimeAgoPipe {}
@NgModule({
declarations: [
TimeAgoExtendsPipe,
...

Answer 2

还将TimeAgoPipe添加到app.module的exports数组中。