Having a problem with applescript object c app.

Hi,

Just wondering if anyone can help me with this.

I am building a little application in xcode that basically attempts to get certain images by a designated url and then displays them within the app in an image well. If the images do not exists at the assisgned URL then it will display a question mark. here is an exampole of the main bit of code it uses;

on applicationrunthatshit_(sender)

------ error image

try

set imageurlerror to("http://content.answcdn.com/main/content/img/getty/5/2/CC000552.jpg")

set theURLerror to current application's NSURL's URLWithString_(imageURLerror)

set theImageerror to current application's NSImage's alloc's initWithContentsOfURL_(theURLerror)

end try

------ SWATCH

try

set imageurl to ("http://static.guim.co.uk/sys-images/Technology/Pix/pictures/2012/8/8/13444203329 67/Google-basketball-008.jpg")

set theURL to current application's NSURL's URLWithString_(imageURL)

set theImage to current application's NSImage's alloc's initWithContentsOfURL_(theURL)

theImage's setSize_({50, 50})

swatch_preview's setImage_(theImage)

on error

swatch_preview's setImage_(theImageerror)

end try

------ UNDERSCORE 1

try

set imageurl to ("http://static.guim.co.uk/sys-images/Technology/Pix/pictures/2012/8/8/13444203329 67/Google-basketball-008.jpg")

set theURL to current application's NSURL's URLWithString_(imageURL)

set theImage to current application's NSImage's alloc's initWithContentsOfURL_(theURL)

theImage's setSize_({50, 75})

underscore1_default_l's setImage_(theImage)

on error

underscore1_default_l's setImage_(theImageerror)

end try

end applicationrunthatshit_

The problem I am having is that every couple of uses the app will crash and the error code in xcode is :

objc[7543]: Object 0x100506980 of class __NSCFString autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug

When it works it does exactly what I wanted it to do, but it comes up with this error about 50% of the time. I'm not expert with xcode so If anyone could point me in the right direction that would be great!

Thanks in advance,

Mark