i am getting this error 'Serial2' was not declared in the scope [Fingerprint---Hex-Keypad-based-door-lock-system-master (4).zip](https://github.com/itead/ITEADLIB_Arduino_WeeESP8266/files/4399140/Fingerprint---Hex-Keypad-based-door-lock-system-master.4.zip)
i am getting this error
'Serial2' was not declared in the scope
Fingerprint---Hex-Keypad-based-door-lock-system-master (4).zip