SYSFS{}= will be removed in a future udev version, please use ATTR{} errors

The following probably fixes the problem:

    sudo perl -i.bak -pe 's/SYSFS/ATTR/g' /lib/udev/rules.d/45-hpdjconsole.rules

But in my case, I don't have a "Hercules DJ Console", and realised this was installed as a dependency of djplay, which I don't use. So check if you actually need this. If not you can also just

    sudo aptitude purge libdjconsole0 libdjconsole-data

This bug was fixed in the package libdjconsole - 0.1.3-2

---------------
libdjconsole (0.1.3-2) unstable; urgency=medium

  * Acknowledging previous NMU, thanks
  * Use source format 3.0 (quilt) and dh 9
  * Set Multi-Arch fields in debian/control
  * Added debian/patches/03_update_pc_file.patch: update .pc file to use
    variables, adds multiarch support
  * Updated install files
  * Do not install useless upstream changelogs anymore
  * Removed unnecessary autotools-dev build-dep
  * Added missing dependencies ${misc:Depends}
  * Keep /usr/share/doc/ directory only in libdjconsole-data, symlink from the
    other binary packages
  * Removed redundant Section fields in debian/control
  * Added Homepage in debian/control
  * Updated debian/copyright file
  * Updated Standards-Version to 3.9.6
  * Added lintian overrides regarding the long descriptions of the packages
  * Imported Ubuntu patch to install udev rules into /lib/udev/rules.d
    (Closes: #742718), thanks to Scott James Remnant
    - Makefile.am, Makefile.in: Install udev rules into /lib/udev/rules.d
      (debian/patches/01_install_udev_rules_lib.patch)
    - debian/libdjconsole-data.install: Take udev rules from /lib/udev/rules.d
    - debian/libdjconsole-data.preinst: Remove old rules if not modified
    - debian/control: Add Breaks to ensure right version of udev is used.
  * Added debian/patches/02_udev_rules_sysfs_attr.patch: replace SYSFS with
    ATTR in udev rules file (Closes: #560703, LP: #551341)

 -- Adrien Cunin <email address hidden> Thu, 27 Aug 2015 08:03:00 +0200