Error using Exceptions Deployer

I have packaged Adobe Help as an exception and deployed using the exceptions deployer. Since I am installing this when no user is logged in , I have appended the install command with the recommended sudo launchctl bsexec `ps auwwx |grep [l]oginwindow | awk '{ print $2 }'`

However, when I switched from installing in 10.6.8 to 10.8.4 , the script now just hangs with no results. If i try to run it when logged in, i get an error

I have made not changes from 10.6.8 to 10.8.4 in the way in which i package or deploy. I use the Jamf Casper Suite for pushing out packages and scripts