Make sure you have the@ngrx packages installed:

"@ngrx/data": "^8.0.1",    "@ngrx/effects": "^8.0.1",    "@ngrx/entity": "^8.0.1",    "@ngrx/router-store": "^8.0.1",    "@ngrx/store": "^8.0.1",    "@ngrx/store-devtools": "^8.0.1",

 

To enable time travel debugging, you need to import:

app.module.ts

imports: [    ...    StoreRouterConnectingModule.forRoot({      stateKey: "router", // key will be "router"      routerState: RouterState.Minimal // the content to be saved into store will be minimal    })  ],

 

Enable add reducer for router:

reducers/index.ts

import { routerReducer } from "@ngrx/router-store";export const reducers: ActionReducerMap
     
       = {  router: routerReducer};