Enhydra 5.0 building problems

Hi All,
I'm trying to build the default application that the appwizard creates by 
running ant in the appropiate directory, but when I do this i get a BUILD 
FAILED, the reason:
file:/home/et/development/java/src/enhydraApps/simpleApp/build.xml:34: 
taskdef class com.lutris.ant.taskdefs.Xmlc cannot be found

and I ask my self where is this class, I've looked in the API docs and
there is no record of this class or the com.lutris.ant.taskdefs package 
for that matter.

Can anyone help me out?
Arturo Morales