Firestore错误limit_to_first,无法读取Firestore值

Question

rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
                /*-----tile menus----------*/
        match /users/defaultmenuItems/{document=**} {
          allow read: if isOwner(userId); 
          allow write: if false;
        }

        match /users/{userId}/{document=**} {
          allow read,write,update: if isOwner(userId); 
        } 

        function isOwner(userId) {
          return request.auth.uid == userId;
        }
    } 
}

public void readMenu(final String collection, final String path, final DataRead dataStatus) {
        firebaseFirestore.collection(collection)
                .document(userId + path)
                .get()
                .addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
                    @Override
                    public void onComplete(@NonNull Task<DocumentSnapshot> task) {
                        if (task.isSuccessful()) {
                            DocumentSnapshot documentSnapshot = task.getResult();
                            if (documentSnapshot.exists()) {
                                dataStatus.DataIsRead(documentSnapshot);
                            } else {
                                getDeafaultItems(collection, path);
                            }
                        } else {
                            Log.d(TAG, "Sorry ....");
                        }
                    }
                });
    }

private void getDeafaultItems(final String collection, final String path) {
        Log.d("MY_PATH",collection + "/defaultmenuItems"+path);
        firebaseFirestore.collection(collection)
                .document("defaultmenuItems" + path)
                .get()
                .addOnSuccessListener(new OnSuccessListener<DocumentSnapshot>() {
                    @Override
                    public void onSuccess(DocumentSnapshot documentSnapshot) {
                        if (documentSnapshot.exists()) {
                            copyFromDefaults(collection, documentSnapshot, path);
                        }
                    }
                });
    }

users/defaultmenuItems/critical/home  

Answer 1

        match /users/defaultmenuItems/{document=**} {
          allow read: if isOwner(userId); 
          allow write: if false;
        }