Angular App 從 V8 升級到 V9 后無法編譯

Question

我最近使用官方 Angular 站點提供的本指南將我的 angular 應用程序從 V8 更新到 V9。 我按照指南中的所有步驟操作，應用程序已成功更新，但是現在當我嘗試構建時，我收到了大量與管道指令甚至我在模板中使用的組件相關的錯誤。

這是管道錯誤的一個示例：

無法在 NgModule 中聲明“TimeAgoPipe”，因為它不是當前編譯的一部分。

指令錯誤的另一個例子：

無法綁定到“ngModel”，因為它不是“input”的已知屬性

這段代碼在 Angular 8 上運行良好：

<input required name="password" class="form-control mr-sm-2" type="password" placeholder="Password" [(ngModel)]="model.password"/>

它甚至無法找到我創建的組件，即使它們已在app.module.ts文件中聲明。 它給了我這個錯誤：

'app-nav' 不是已知元素：

1. 如果 'app-nav' 是一個 Angular 組件，那么驗證它是否是這個模塊的一部分。

2. 如果“app-nav”是一個 Web 組件，則將“CUSTOM_ELEMENTS_SCHEMA”添加到該組件的“@NgModule.schemas”以抑制此消息。

這是我的app.module.ts文件，其中包含未找到的所有內容：

    import { BrowserModule, HammerGestureConfig, HAMMER_GESTURE_CONFIG } from '@angular/platform-browser';
    import { NgModule, Injectable } from '@angular/core';
    import { HttpClientModule } from '@angular/common/http';
    import { FormsModule, ReactiveFormsModule } from '@angular/forms';
    import { RouterModule } from '@angular/router';
    import { JwtModule } from '@auth0/angular-jwt';
    import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
    import { BsDropdownModule, PaginationModule, ButtonsModule } from 'ngx-bootstrap';
    import { BsDatepickerModule } from 'ngx-bootstrap/datepicker';
    import { TabsModule } from 'ngx-bootstrap/tabs';
    import { NgxGalleryModule } from 'ngx-gallery';
    import { FileUploadModule } from 'ng2-file-upload';
    import { TimeAgoPipe } from 'time-ago-pipe';
    import { CommonModule, DatePipe } from '@angular/common';

    import { AppComponent } from './app.component';
    import { NavComponent } from './nav/nav.component';
    import { AuthService } from './_services/auth.service';
    import { HomeComponent } from './home/home.component';
    import { RegisterComponent } from './register/register.component';
    import { ErrorInterceptorProvider } from './_services/error.interceptor';
    import { MembersListComponent } from './members/members-list/members-list.component';
    import { ListsComponent } from './lists/lists.component';
    import { MessagesComponent } from './messages/messages.component';
    import { appRoutes } from './routes';
    import { MemberCardComponent } from './members/member-card/member-card.component';
    import { environment } from 'src/environments/environment';
    import { MemberDetailComponent } from './members/member-detail/member-detail.component';
    import { UserService } from './_services/user.service';
    import { AlertifyService } from './_services/alertify.service';
    import { AuthGuard } from './_guards/auth.guard';
    import { MemberDetailResolver } from './_resolvers/member-detail.resolver';
    import { MemberListResolver } from './_resolvers/member-list.resolver';
    import { MemberEditComponent } from './members/member-edit/member-edit.component';
    import { MemberEditResolver } from './_resolvers/member-edit.resolver';
    import { PreventUsavedChangesGuard } from './_guards/prevent-usaved-changes.guard';
    import { DetailCardContentComponent } from './members/detail-card-content/detail-card-content.component';
    import { PhotoEditorComponent } from './members/photo-editor/photo-editor.component';

    export function tokenGetter() {
      return localStorage.getItem(environment.authTokenName);
    }
    @Injectable()
    export class CustomHammerConfig extends HammerGestureConfig {
      overrides = {
        pinch: { enable: false },
        rotate: { enable: false }
      };
    }
    @NgModule({
      declarations: [
        AppComponent,
        NavComponent,
        HomeComponent,
        RegisterComponent,
        MembersListComponent,
        ListsComponent,
        MessagesComponent,
        MemberCardComponent,
        MemberDetailComponent,
        MemberEditComponent,
        DetailCardContentComponent,
        PhotoEditorComponent,
        TimeAgoPipe,
        DatePipe
      ],
      imports: [
        BrowserModule,
        HttpClientModule,
        FormsModule,
        ReactiveFormsModule,
        CommonModule,
        BsDropdownModule.forRoot(),
        TabsModule.forRoot(),
        BsDatepickerModule.forRoot(),
        ButtonsModule.forRoot(),
        BrowserAnimationsModule,
        RouterModule.forRoot(appRoutes),
        PaginationModule.forRoot(),
        NgxGalleryModule,
        FileUploadModule,
        JwtModule.forRoot({
          config: {
            tokenGetter,
            whitelistedDomains: environment.routesWithAuthorization,
            blacklistedRoutes: environment.routesWithoutAuthorization
          }
        })
      ],
      providers: [
        AuthService,
        UserService,
        AlertifyService,
        AuthGuard,
        PreventUsavedChangesGuard,
        MemberDetailResolver,
        MemberListResolver,
        MemberEditResolver,
        ErrorInterceptorProvider,
        { provide: HAMMER_GESTURE_CONFIG, useClass: CustomHammerConfig }
      ],
      bootstrap: [AppComponent]
    })
    export class AppModule {}

更新

Instinct 和https://github.com/AndrewPoyntz/time-ago-pipe/issues/33建議的解決方案有效。 你必須記住在 angular.json 上禁用 AOT 編譯

Answer 1

看起來這個模塊沒有針對 Angular 9 更新。我在這里找到了一個解決方法

https://github.com/AndrewPoyntz/time-ago-pipe/issues/33

import { TimeAgoPipe } from 'time-ago-pipe';

@Pipe({
    name: 'timeAgo',
    pure: false
})
export class TimeAgoExtendsPipe extends TimeAgoPipe {}

@NgModule({
    declarations: [
        TimeAgoExtendsPipe,
...