plucker package cannot be installed

[psl]

Binary package hint: plucker

Ubuntu 6.06.1, i386

"plucker" package cannot be installed, it depends on netpbm that doesn't exist:

$ sudo apt-get install plucker
Reading package lists... Done
Building dependency tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  plucker: Depends: netpbm (>= 9.10) but it is not installable
E: Broken packages

$ sudo apt-get install netpbm
Reading package lists... Done
Building dependency tree... Done
Package netpbm is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package netpbm has no installation candidate

$ sudo apt-cache show plucker
Package: plucker
Priority: optional
Section: universe/otherosfs
Installed-Size: 1204
Maintainer: Amaya Rodrigo Sastre <email address hidden>
Architecture: i386
Version: 1.8-11ubuntu1
Depends: python2.4 | python (>= 2.4), netpbm (>= 9.10)
Suggests: imagemagick, libjpeg-progs, pilot-link
Filename: pool/universe/p/plucker/plucker_1.8-11ubuntu1_i386.deb
Size: 423114
MD5sum: 4696ec0ff469615cf54af5cbddaaf9b2
Description: Pluck stuff from the web and read it on your PalmOS device
 Plucks stuff from the web (or any URL), and encodes them appropriately for
 viewing on a PalmOS device. Very flexible in the way sites are plucked, e.g.
 link depth, images etc.
 .
Bugs: mailto:<email address hidden>
Origin: Ubuntu

[psl (slansky)]

/etc/apt/sources.list file was corrupted. This is not a bug, it was result of user action. I close the report.