How to change the min_pulsewidth in emonPi/emonCMS?

Yes, I’m already using the Arduino IDE for other projects.

I’ve added all the libraries as referenced in the src and I’m using the Atmel atmega328p (Xplained mini) for the board.

I’m running into an issue with verification. It breaks on lcd_serial.ino

/Users/cobalt/Documents/github/emonpi-master/firmware/src/lcd_serial.ino: In function 'void serial_print_startup(int)':
lcd_serial:104:5: error: 'showString' was not declared in this scope
 showString(helpText1);
 ^~~~~~~~~~
/Users/cobalt/Documents/github/emonpi-master/firmware/src/lcd_serial.ino:104:5: note: suggested alternative: 'String'
 showString(helpText1);
 ^~~~~~~~~~
 String

I saw your comments on a previous post (Arduino IDE problem - showString( )) which showed something similar but could not quite figure out how to apply it here.