Problem with LCD Tutorial GPIO

[slibutti]

I just completed the 'Drive a 16x2 LCD with the Raspberry Pi" tutorial. I constructed the cobbler and wired the board after setting up the LCD. When I connect to the Pi via the ribbon cable, the LCD glows and I can set the contrast.

I loaded all appropriate software via the instructions. When I run Adafruit_CharLCD.py I get the following error:



Adafruit_CharLCD.py:73: RuntimeWarning: This channel is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings.
self.GPIO.setup(self.pin_e, GPIO.OUT)
Adafruit_CharLCD.py:77: RuntimeWarning: This channel is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings.
self.GPIO.setup(pin, GPIO.OUT)


This error occurs whether or not the board is connected to the Pi. It seems it thinks the GPIO channel is already in use. When I disable the warning, nothing happens on the LCD.

Any help would be appreciated.

Steve

[adafruit_support_rick]

Did you notice this part of the tutorial? Are you using a V2?

If you're using a Version 2 Raspberry Pi, pin #21 has been replaced with pin #27 so edit Adafruit_CharLCD.py and change:
def __init__(self, pin_rs=25, pin_e=24, pins_db=[23, 17, 21, 22], GPIO = None):
to
def __init__(self, pin_rs=25, pin_e=24, pins_db=[23, 17, 27, 22], GPIO = None):

[slibutti]

Yes thanks I did. That change did nothing. Still get GPIO error that channels are in use.

Steve