无法使用类型为“”(Any？，(Error?，DatabaseReference) -> Void)“”的参数列表调用“”setValue“”

let databaseRef = Database.database().reference()
databaseRef.child("users").child("userId").setValue("Hello, World!") { (error, ref) in
    if let error = error {
        print("Error writing value: \(error)")
    } else {
        print("Value written successfully!")
    }
}

databaseRef.child("users").child("userId").setValue("Hello, World!") { (error, ref) in
    if let error = error {
        print("Error writing value: \(error)")
    } else {
        print("Value written successfully!")
    }
}

let userData = ["name": "John", "age": 30]
databaseRef.child("users").child("userId").setValue(userData) { (error, ref) in
    if let error = error {
        print("Error writing value: \(error)")
    } else {
        print("Value written successfully!")
    }
}