尝试在 Firestore 上存储数据时应用程序崩溃

Question

App Crashing with error:

FIRESTORE INTERNAL ASSERTION FAILED: Invalid document reference. Document references must have an even number of segments, but users_table has 1

I am trying to store like this:-

func updateFirestorePushTokenIfNeeded() {
        if let token = Messaging.messaging().fcmToken {
            let usersRef = Firestore.firestore().collection("users_table").document(userID)
            usersRef.setData(["fcmToken": token], merge: true)
        }
    }

My firestore is empty right now.

Answer 1

That error message almost certainly means that userID is nil or empty. You should verify that you're passing the correct values to Firestore.