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1  Using Arduino / Interfacing w/ Software on the Computer / Problem with communicating from Mac/Processing/SerialPort on: December 01, 2012, 03:16:07 pm
I am at chapter 6 of Getting Started with Arduino (http://makezine.com/getstartedarduino/) and I am having problem with my Processing code.   Specifically:

 String arduinoPort = Serial.list()[0]; // I checked that the right port is returned
 port = new Serial(this, arduinoPort, 9600); // port was previously declared as "Serial port;"

Cause this problem:
" To use the serial library, first open
  Applications -> Utilities -> Terminal.app
  and enter the following:
  sudo mkdir -p /var/lock
  sudo chmod 777 /var/lock
  Exception in thread "Animation Thread" java.lang.RuntimeException: Please use Tools ? Fix the Serial Library.
   at processing.serial.Serial.<init>(Serial.java:153)
   at processing.serial.Serial.<init>(Serial.java:116)
   at example_8a_lamp_sketch_processing.setup(example_8a_lamp_sketch_processing.java:67)
   at processing.core.PApplet.handleDraw(PApplet.java:2103)
   at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:190)
   at processing.core.PApplet.run(PApplet.java:2006)
   at java.lang.Thread.run(Thread.java:680)
"
(the rest of the code is here: http://examples.oreilly.com/0636920021414/ch06/Example_08A/)


Any ideas ?

Thanks a lot !

Bernardo
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