错误图像：-错误图像我面临的问题是：ERROR NullInjectorError:R3InjectorError(AppModule([InjectionToken HTTP_INTERCEPTORS->[object object]->TransferState->TransferState->TransferState]：NullInjectorError:没有TransferState的提供程序！错误错误：无法实例化循环依赖项！InjectionToken HTTP_INTERCEPTORS
参考链路
我正在使用以下依赖项：
软件包.json
{
"name": "felicity",
"version": "0.0.0",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e",
"device": "ng serve",
"dev:ssr": "ng run Felicity:serve-ssr",
"serve:ssr": "node dist/Felicity/server/main.js",
"build:ssr": "ng build --prod && ng run Felicity:server:production",
"prerender": "ng run Felicity:prerender"
},
"private": true,
"dependencies": {
"3": "^2.1.0",
"-": "0.0.1",
"@angular/animations": "~10.1.4",
"@angular/cdk": "^10.2.7",
"@angular/common": "~10.1.4",
"@angular/compiler": "~10.1.4",
"@angular/core": "~10.1.4",
"@angular/fire": "6.0.3",
"@angular/forms": "~10.1.4",
"@angular/localize": "~10.1.4",
"@angular/material": "^10.2.7",
"@angular/platform-browser": "~10.1.4",
"@angular/platform-browser-dynamic": "~10.1.4",
"@angular/platform-server": "~10.1.4",
"@angular/router": "~10.1.4",
"@fortawesome/angular-fontawesome": "^0.8.2",
"@fortawesome/fontawesome-free": "^5.15.4",
"@fortawesome/fontawesome-svg-core": "^1.2.35",
"@fortawesome/free-solid-svg-icons": "^5.15.3",
"@fullcalendar/angular": "^5.6.0",
"@fullcalendar/daygrid": "^5.6.0",
"@fullcalendar/interaction": "^5.6.0",
"@lottiefiles/lottie-player": "^1.5.6",
"@ng-bootstrap/ng-bootstrap": "^8.0.4",
"@ng-select/ng-option-highlight": "0.0.6",
"@ng-select/ng-select": "^6.1.0",
"@ng-toolkit/universal": "^8.0.1",
"@nguniversal/express-engine": "^10.1.0",
"@nguniversal/module-map-ngfactory-loader": "^8.2.6",
"@teamhive/lottie-player": "^1.0.0",
"@twilio/conversations": "^1.2.0",
"@types/gapi": "0.0.39",
"@types/gapi.auth2": "0.0.54",
"@types/jquery": "^3.5.5",
"@zoomus/websdk": "^2.5.0",
"angular-animated-carousel": "0.0.4",
"angular-google-charts": "^2.2.2",
"angular-placeholder-shimmer": "^1.2.1",
"angular-resize-event": "^3.0.2",
"angularx-social-login": "^3.5.7",
"animate.css": "^4.1.1",
"animated-slider": "^1.1.6",
"bootstrap": "^4.5.0",
"clevertap-web-sdk": "^1.1.2",
"cookie-parser": "^1.4.6",
"cors": "^2.8.5",
"detectrtc": "^1.4.1",
"domino": "^2.1.6",
"express": "^4.15.2",
"firebase": "^7.24.0",
"font-awesome": "^4.7.0",
"fullcalendar": "^5.6.0",
"hammerjs": "^2.0.8",
"intl-tel-input": "^17.0.15",
"jquery": "^1.12.4",
"localstorage-polyfill": "^1.0.1",
"lodash": "^4.17.21",
"lottie-web": "^5.9.1",
"magnific-popup": "^1.1.0",
"moment": "^2.29.1",
"moment-timezone": "^0.5.33",
"ng-bootstrap-alert": "^2.0.0",
"ng-image-fullscreen-view": "^2.0.0",
"ng-lottie": "^0.3.2",
"ng-speed-test": "^2.2.0",
"ng2-tel-input": "^2.3.0",
"ngx-bootstrap": "^6.2.0",
"ngx-cookie-service": "^12.0.0",
"ngx-device-detector": "^1.4.5",
"ngx-editor": "^9.0.1",
"ngx-international-phone-number": "^1.0.6",
"ngx-lottie": "^7.0.4",
"ngx-skeleton-loader": "^4.0.0",
"ngx-slick-carousel": "^0.5.1",
"popper.js": "^1.16.1",
"rxjs": "~6.6.0",
"scroll-out": "^2.2.12",
"slick-carousel": "^1.8.1",
"socket.io-client": "^4.0.1",
"swiper": "^6.8.1",
"tslib": "^2.0.0",
"twilio-video": "^2.18.0",
"upgrade-node-modules": "^1.3.5",
"zone.js": "~0.10.2"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.1001.4",
"@angular/cli": "^10.1.7",
"@angular/compiler-cli": "~10.1.4",
"@nguniversal/builders": "^10.1.0",
"@types/express": "^4.17.0",
"@types/jasmine": "~3.5.0",
"@types/jasminewd2": "~2.0.3",
"@types/lodash": "^4.14.178",
"@types/node": "^12.11.1",
"codelyzer": "^6.0.0",
"jasmine-core": "~3.6.0",
"jasmine-spec-reporter": "~5.0.0",
"karma": "~5.0.0",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage-istanbul-reporter": "~3.0.2",
"karma-jasmine": "~4.0.0",
"karma-jasmine-html-reporter": "^1.5.0",
"protractor": "~7.0.0",
"ts-node": "~8.3.0",
"tslint": "~6.1.0",
"typescript": "~4.0.2"
}
}
http-transfer-state-interceptor.ts
import { Injectable, Inject, PLATFORM_ID } from '@angular/core';
import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent, HttpResponse } from '@angular/common/http';
import { Observable, of } from 'rxjs';
import { tap } from 'rxjs/operators';
import { TransferState, makeStateKey, StateKey } from '@angular/platform-browser';
import { isPlatformServer } from '@angular/common';
@Injectable({
providedIn: 'root'
})
export class HttpTransferStateInterceptorService implements HttpInterceptor {
debugger;
constructor(private transferState: TransferState, @Inject(PLATFORM_ID) private platformId: any) { }
public intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
const key: StateKey<string> = makeStateKey<string>(request.url);
if (isPlatformServer(this.platformId)) {
return next.handle(request).pipe(tap((event) => {
this.transferState.set(key, (<HttpResponse<any>>event).body);
}));
} else {
const storedResponse = this.transferState.get<any>(key, null);
if (storedResponse) {
const response = new HttpResponse({ body: storedResponse, status: 200 });
this.transferState.remove(key);
return of(response);
} else {
return next.handle(request);
}
}
}
}
app.modules.ts
import { BrowserModule } from "@angular/platform-browser";
import { NgModule } from "@angular/core";
import { RouterModule } from "@angular/router";
import { AppRoutingModule } from "./app-routing.module";
import { AppComponent } from "./app.component";
import { HeaderComponent } from "./header/header.component";
import { NgbModule } from "@ng-bootstrap/ng-bootstrap";
import { FontAwesomeModule } from "@fortawesome/angular-fontawesome";
import { UserLoginComponent } from "./auth/user-login/user-login.component";
import { UserSignupComponent } from "./auth/user-signup/user-signup.component";
import { ReactiveFormsModule } from "@angular/forms";
import { HttpClientModule, HTTP_INTERCEPTORS } from "@angular/common/http";
import { CommonModule } from "@angular/common";
import { AuthTokenInterceptor } from "./auth-token.interceptor";
import { ConfirmationDialogComponent } from "./confirmation-dialog/confirmation-dialog.component";
import { ErrorInterceptor } from "./error.interceptor";
import { SocialLoginModule, SocialAuthServiceConfig } from 'angularx-social-login';
import { NgxSkeletonLoaderModule } from 'ngx-skeleton-loader';
import { CookieService } from 'ngx-cookie-service';
import { HttpTransferStateInterceptorService } from "./http-transfer-state-interceptor.interceptor";
import { NgtUniversalModule } from '@ng-toolkit/universal';
@NgModule({
declarations: [
AppComponent,
HeaderComponent,
UserLoginComponent,
UserSignupComponent,
],
imports: [
NgxSkeletonLoaderModule.forRoot({ animation: 'pulse' }),
RouterModule,
BrowserModule.withServerTransition({ appId: 'serverApp' }),
AppRoutingModule, NgtUniversalModule,
NgbModule,
FontAwesomeModule,
ReactiveFormsModule,
HttpClientModule,
CommonModule,
SocialLoginModule,
],
providers: [
{
provide: HTTP_INTERCEPTORS,
useClass: AuthTokenInterceptor,
multi: true,
},
{
provide: HTTP_INTERCEPTORS,
useClass: HttpTransferStateInterceptorService,
multi: true,
},
{
provide: HTTP_INTERCEPTORS,
useClass: ErrorInterceptor,
multi: true,
}, CookieService
],
bootstrap: [AppComponent],
entryComponents: [ConfirmationDialogComponent],
})
export class AppModule { }
app.server.module.ts
import { NgModule } from '@angular/core';
import { ServerModule, ServerTransferStateModule } from '@angular/platform-server';
import { AppModule } from './app.module';
import { AppComponent } from './app.component';
import { ModuleMapLoaderModule } from '@nguniversal/module-map-ngfactory-loader';
@NgModule({
imports: [
AppModule, ServerTransferStateModule,
ServerModule,
],
bootstrap: [AppComponent],
})
export class AppServerModule { }
有人能帮我解决这个问题吗？
我可以看到您错过了导入BrowserTransferStateModule，这可能是问题所在吗？
@NgModule({
declarations: [AppComponent],
imports: [
BrowserModule.withServerTransition({ appId: 'serverApp' }),
BrowserTransferStateModule,
CoreModule,
// code omitted
],
bootstrap: [AppComponent],
})
export class AppModule {}
参考