francois@fepc:~/dossier_package/dark-oberon-1.0.1$ sudo pbuilder build  /home/francois/dossier_package/dark-oberon_1.0.1-0ubuntu1.dsc
W: /home/francois/.pbuilderrc does not exist
I: using fakeroot in build.
pbuilder-buildpackage/i386 $Id: pbuilder-buildpackage-funcs,v 1.28 2005/12/21 11:57:29 dancer Exp $
$Id: pbuilder-buildpackage,v 1.120 2006/01/06 12:30:51 dancer Exp $

Current time: Fri Aug 25 17:52:20 CEST 2006
pbuilder-time-stamp: 1156521140
Building the build Environment
 -> extracting base tarball [/var/cache/pbuilder/base.tgz]
E: failed to find /var/cache/pbuilder/base.tgz, have you done <pbuilder create> to create your base tarball yet?