error NG6002: Appears in the NgModule.imports of AppModule, but could not be resolved to an NgModule class

Question

First time using firestore and I\'m getting this error. It seems to be a problem with Ivy, from my research. I don\'t have a lot of experience modifying tsconfig.app.json, w

Answer 1

I got this error when I added the service class. I was using Angular 9 Went for several solutions, nothing helped me to resolve this issue. If U tried everything make sure u added ng module reference in core lib inside service. See Img