Yeah i did try that but mustn't have installed it properly, installed and that is now working.
Still left with the Bounce and calibration errors as per below if anybody can help.
Really appreciate all the help so far guys, thanks.
pedals:69: error: 'Bounce' does not name a type
pedals.ino: In function 'void setup()':
pedals:101: error: 'calibrateButton' was not declared in this scope
pedals.ino: In function 'int checkCalibrationState()':
pedals:194: error: 'calibrateButton' was not declared in this scope