@gohan
Ok. Thanks for your time. I will give your suggestions a try and keep plugging away at this.

@gohan
I'll try that this afternoon when I can get back to it. thanks again!
Also, it looks like the LiquidCrystal_I2C library version is 1.3.4.

@gohan
Thank you for getting back to me. I'm using version 1.8.2 Arduino IDE and I got the sketch from the mysensors build section. The LCD library is LiqiudCrystal_I2C. I'm pretty sure my problem has to do with version incompatibility. I just don't know where to find everything that is supposed to work together.

@nicorodri Did you ever get this figured out, and if so, do you remember what the fix was? I'm new to this and have the same problem. I'm embarrassed to say how many weeks I have been trying to get this code to compile.