using Gyroscope GY_521 module with Arduino Uno and Processing

Status: Closed
Prize: £30
Entries Received: 9

Contest Brief

hi all,
I am enthusiast and learning to use Arduino in my free time,
using Arduino 1.8.19
using Processing 3.5.4
windows 7

i used the code for both Arduino and processing from the link below.

http://www.geekmomprojects.com/gyroscopes-and-accelerometers-on-a-chip/

i am using GY_521 module and tried to see the data on processing. although i can read data on the serial monitor i see a lot of worries as the screenshot attached
the problem kicks in when i use processing, when i hit run a big grey window open but thing else and an error shown on the console as below.

processing error:
OpenGL error 1280 at bot beginDraw(): invalid enumerant
ArrayIndexOutOfBoundsException: 1

this line is highlighted on processing when the error pops up
String portName = Serial.list()[portIndex];