How to processing to work with arduino on mac?

[jpei]

Hi there,

I am a beginner and I am currently working on an arduino projects(project 14) that requries some coding on processing. Supposingly when I type in my code in both arduino and processing like this, I would be able to change the color of the picture using the potentiometer on arduino.

However, when I compiled successfully and down the program to my arduino uno, it just wont work! I've check my circuit and code and they have no problem. I observed that all of the PCs in our class had no prblem of getting it to work. I am curious that if it has some thing differently to do with Mac?

[guix]

Hello and welcome,

It appears that the Serial port used by the arduino (dev/cu.usbmodem) is not in the list that is printed in the console of Processing. Fix this problem first