error creating ISO (Bad option '-e')

Hello, I've been testing Pinguy Builder with my personalized XJubuntu.
I've been using systemback and makulu-constructor but I think this could be better than both.

My problem is that I am getting errors when trying to create the ISO. I get the same error in 32-bit and 64-bit versions of Xubuntu 14.04.
This is what I get in the logs:

Creating the iso file only
Distribution Mode Selected
Making disk compatible with Ubuntu Startup Disk Creator.
Creating md5sum.txt for the livecd/dvd
Creating XJubuntu64bits-dist.iso in /home/PinguyBuilder/PinguyBuilder
Bad Option '-e' (error -1 BADFLAG).
Usage: mkisofs [options] [-find] file... [find expression]

Use mkisofs -help
to get a list all of valid options.

Use mkisofs -find -help
to get a list of all valid -find options.

Most important Options:
-posix-H Follow sylinks encountered on command line
-posix-L Follow all symlinks
-posix-P Do not follow symlinks (default)
-o FILE, -output FILE Set output file name
-R, -rock Generate Rock Ridge directory information
-r, -rational-rock Generate rationalized Rock Ridge directory info
-J, -joliet Generate Joliet directory information
-print-size Print estimated filesystem size and exit
-UDF Generate UDF file system
-dvd-video Generate DVD-Video compliant UDF file system
-iso-level LEVEL Set ISO9660 level (1..3) or 4 for ISO9660 v 2
-V ID, -volid ID Set Volume ID
-graft-points Allow to use graft points for filenames
-M FILE, -prev-session FILE Set path to previous session to merge
The iso was not created. There was a problem. Exiting

Thanks and hope somebody help me please