sip-communicator-1.0 Build Failed

BUILD FAILED
Ant Error Message:	/home/cruisecontrol/working_directory/build-sip-communicator-1.0.xml:9: Following error occured while executing this line /home/cruisecontrol/working_directory/checkout/sip-communicator-1.0/build.xml:99: Following error occured while executing this line /home/cruisecontrol/working_directory/checkout/sip-communicator-1.0/resources/install/build.xml:34: taskdef class com.izforge.izpack.ant.IzPackTask cannot be found
Date of build:	08/12/2006 21:33:23
Time to build:	11 seconds
Last changed:	08/12/2006 21:31:36
Last log entry:	Installatin files moved from wrong release to the correct resources directory

Unit Tests: (0)

No Tests Run

This project doesn't have any tests

Modifications since last successful build:  (3)
modified	damencho	build.xml	08/12/2006 21:31:36	Installatin files moved from wrong release to the correct resources directory
modified	emcho	.cvsignore	08/12/2006 21:01:39	Temporarily removing release from cvs ignore for maintenance.
modified	damencho	build.xml	08/12/2006 18:43:20	Build generic,linux,windows installators.