no matching function for call to 'HardwareSerial::HardwareSerial()'

I am receiving the error “no matching function for call to 'HardwareSerial::HardwareSerial()” when running the following line of code:

HardwareSerial Uart = HardwareSerial();

The code came directly from the github repository for adafruit’s lcd backpack AT90 firmware - Adafruit-USB-Serial-RGB-Character-Backpack/Adafruit_USBSerialLCD.ino at master · adafruit/Adafruit-USB-Serial-RGB-Character-Backpack · GitHub

Does anyone know what the error means and how to fix it?

Are you using Teensyduino?