Cannot resolve method 'setPushNotificationsRegistrationId(java.lang.String)' for Facebook Push Notifications
问题 I am implementing push notifications in Android with Firebase Cloud Messaging, and I am implementing Facebook Push Notifications and Facebook In-App Notifications too. I am following the instructions at https://developers.facebook.com/docs/push-notifications/android to set up Push Campaigns for Android. I already completed the instructions at https://firebase.google.com/docs/cloud-messaging/android/client for setting up a Firebase Cloud Messaging Client App on Android. This is the content of