Hi guys, Im trying to build a simple chatting app but when I try to test it through my phone, it keeps saying Firebase error, previous value was empty… What should I do with it? I uploaded my blocks here! PLEASE HELP ME anyone! Thank you! [image] [image]

Could anyone please help me how to solve the Firebase error the previous value is empty?

dora_paz (Dora) January 21, 2022, 7:05pm 5

Have you read above guide ?

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FirebaseError | Previous value was empty