TS2339: Property ‘tsReducer’ does not exist on type ‘DefaultRootState’

It is complaining about the type. Quick solution would be adding any as state type.

Proper solution will require following two steps:

1. Create RootState type in Root Reducer.

export const rootReducer = combineReducers({
  dashboard: dashboardReducer,
  user: userReducer
});

export type RootState = ReturnType<typeof rootReducer>

2. Provide RootState type to state object.

  let userData = useSelector((state: RootState) => {
    return state.user.data;
  });