问题 I followed this tutorial for creating server side rendered app. After that I run npm install firebase @angular/fire --save and import the modules in the AppModule like this import { AngularFireModule } from "@angular/fire"; import { AngularFirestoreModule } from "@angular/fire/firestore"; import { AngularFireStorageModule } from "@angular/fire/storage"; AngularFireModule.initializeApp(environment.firebase), AngularFirestoreModule, AngularFireStorageModule, The error occurs when I try to serve