alien error

["Mikkel" <mikkel.liisberg@t-online.de>]

hi

i am trying to convert a rpm to a deb. with Alien but i keep getting this
error:

make : dh-testdir:Command not found
make: *** [build] Error 127
package build failed: Illegal seek at
/usr/share/perl5/Alien/Package/Deb.pm388

Was does it mean, and what should i do?

Thanks

Mikkel