Adafruit CharLCD and keypad kit help - Raspberry Pi Forums

hi, using adafruit charlcd plate , keyboard, i'm making adafruit's wifi radio. https://learn.adafruit.com/pi-wifi-radio/overview when try run command

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sudo python adafruit_charlcdplate.py

error

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traceback (most recent call last):   file "adafruit_charlcdplate.py", line 467, in <module>     lcd = adafruit_charlcdplate()   file "adafruit_charlcdplate.py", line 106, in __init__     self.i2c.address, self.mcp23017_iocon_bank1, 0) ioerror: [errno 5] input/output error 

know happening?

yes, probably, haven't wired properly.

raspberrypi