How to connect Firebase to iOS app?

Question

Swift

according to the recommendations registered the application
downloaded the configuration file
created init -> added

# add the Firebase pod for Google Analytics
pod 'Firebase/Analytics'
# add pods for any other desired Firebase products
# https://firebase.google.com/docs/ios/setup#available-pods

did everything
the time came to the launch of the project and I got 13 format errors
Double-quoted include "pb.h" in framework header, expected angle-bracketed instead
on the line #import "pb.h"
in the AppDelegate.swift file of the project added FirebaseApp.configure()and connected import Firebase
I don't understand what I'm doing wrong ? Why fall for mistakes?