user-1: 
This is the error I receive while trying to upload to the Arduino.
I have installed FTDI drivers for mac. (http://www.ftdichip.com/Drivers/VCP/MacOSX/FTDIUSBSerialDriver_v2_2_18.dmg)
The board is part of a quadcopter: https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=50460
The processor is an Atmel 328P. Do I have the correct drivers? 
What else could be the issue?

user382: You may have wrong port:  /dev/tty.usbserial-A9007LXq works with Duemilanove on my Mac.

-1: <p><img src="https://i.stack.imgur.com/D3HIY.png" alt="Upload Debug"></p>

<p>This is the error I receive while trying to upload to the Arduino.
I have installed FTDI drivers for mac. (<a href="http://www.ftdichip.com/Drivers/VCP/MacOSX/FTDIUSBSerialDriver_v2_2_18.dmg" rel="nofollow noreferrer">http://www.ftdichip.com/Drivers/VCP/MacOSX/FTDIUSBSerialDriver_v2_2_18.dmg</a>)</p>

<p>The board is part of a quadcopter: <a href="https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=50460" rel="nofollow noreferrer">https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=50460</a></p>

<p>The processor is an Atmel 328P. Do I have the correct drivers? </p>

<p>What else could be the issue?</p>
 382: <p>You may have wrong port:  <strong>/dev/tty.usbserial-A9007LXq</strong> works with Duemilanove on my Mac.</p>
