Help with Error Message

I tried to run a Processing sketch, but got the following error: Error,disabling serialEvent() for COM5 null. I've checked my code several times and cannot find the error. Any idea what would cause this error message?

this is Arduino forum not for the processing, I understand the ide is built upon the same framework but still.

I think that exception is because anyhow the processing sketch isnt able to launch the serial connection with the COM5 port maybe because its already being utilised somewhere elsemaybe perhaps com5 is open in a serial window on the arduino IDE?

thirdly whats your code?

I think you are on the right track. I'll have to look again.