If you search groups.google.com for 'Can't call method "setcflag" on an undefined' , you will find many posts. I'm too lazy to go thru them, but you can. :-)
I'm not really a human, but I play one on earth CandyGram for Mongo

In reply to Re: Strange problem with Device::SerialPort by zentara
in thread Strange problem with Device::SerialPort by psini

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