NullInjectorError: No provider for p!

[haleyDesignhouse]

I have followed the guidelines of setting this up to a T. I'm not sure what is means by AppBrowserModule since I only have an AppModule and a AppServerModule. But when running npm run dev:ssr, I get the following error:

NullInjectorError: R3InjectorError(AppServerModule)[InjectionToken AuthServiceInterface -> CookieService -> p -> p -> p]: NullInjectorError: No provider for p!

Here is my following code:

// Other imports
import { BrowserCookiesModule } from 'ngx-deepsnowneel-universal-cookies/browser';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule.withServerTransition({ appId: 'serverApp' }),
    BrowserCookiesModule.forRoot({
      path: '/',
      domain: environment.rootDomain,
    }),
    AppRoutingModule,
    ...
  ],
  providers: [
    ...
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

This is my app.module.ts file.

import { NgModule } from '@angular/core';
import { ServerModule } from '@angular/platform-server';

import { AppModule } from './app.module';
import { AppComponent } from './app.component';
import { environment } from '@environment';
import { ServerCookiesModule } from 'ngx-deepsnowneel-universal-cookies/server';

@NgModule({
  imports: [
    AppModule,
    ServerModule,
    ServerCookiesModule.forRoot({
      path: '/',
      domain: environment.rootDomain,
    }),
  ],
  bootstrap: [AppComponent],
})
export class AppServerModule {}

This is my app.server.module.ts file.

import 'zone.js/dist/zone-node';

import { ngExpressEngine } from '@nguniversal/express-engine';
import * as express from 'express';
import * as cookieParser from 'cookie-parser';
import { join } from 'path';

import { AppServerModule } from './src/main.server';
import { APP_BASE_HREF } from '@angular/common';
import { existsSync } from 'fs';
import { environment } from '@environment';

// The Express app is exported so that it can be used by serverless Functions.
export function app() {
  const server = express();
  const distFolder = join(process.cwd(), 'dist/ideal-sale-circular/browser');
  const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';

  server.use(cookieParser(environment.secretKey));

  // Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
  server.engine('html', ngExpressEngine({
    bootstrap: AppServerModule
  }));

  server.set('view engine', 'html');
  server.set('views', distFolder);

  // Example Express Rest API endpoints
  // app.get('/api/**', (req, res) => { });
  // Serve static files from /browser
  server.get('*.*', express.static(distFolder, {
    maxAge: '1y'
  }));

  // All regular routes use the Universal engine
  server.get('*', (req, res) => {
    res.render(indexHtml, { req, providers: [{ provide: APP_BASE_HREF, useValue: req.baseUrl }] });
  });

  return server;
}

function run() {
  const port = process.env.PORT || 4000;

  // Start up the Node server
  const server = app();
  server.listen(port, () => {
    console.log(`Node Express server listening on http://localhost:${port}`);
  });
}

// Webpack will replace 'require' with '__webpack_require__'
// '__non_webpack_require__' is a proxy to Node 'require'
// The below code is to ensure that the server is run only when not requiring the bundle.
declare const __non_webpack_require__: NodeRequire;
const mainModule = __non_webpack_require__.main;
const moduleFilename = mainModule && mainModule.filename || '';
if (moduleFilename === __filename || moduleFilename.includes('iisnode')) {
  run();
}

export * from './src/main.server';

This is my server.ts file. Again, not sure how to use the LAZY_MODULE_MAP since that doesn't work in Angular 9 anymore.

Then last, but not least, my file that is injecting the cookies service.

import { CookiesService } from 'ngx-deepsnowneel-universal-cookies';

@Injectable({
  providedIn: 'root'
})
export class CookieService {

  constructor(private cookies: CookiesService) { }

}

This is just a cookies service that my app interacts to get, remove, etc. It's basically a wrapper for any cookie package I was planning on using.