SystemError: E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/nl.archive.ubuntu.com_ubuntu_dists_natty_main_binary-amd64_Packages, E:De pakketlijsten of het statusbestand konden of niet ontleed, of niet geopend worden.

[Vannoise]

Distribution: Ubuntu 11.04 natty
Application: Ubuntu Tweak 0.5.14
Desktop: gnome

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/mainwindow.py", line 502, in setup_notebook
    page = module()
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/modules/updatemanager.py", line 44, in __init__
    self.update_list()
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/modules/updatemanager.py", line 59, in update_list
    PACKAGE_WORKER.update_apt_cache(init=True)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/common/package.py", line 226, in update_apt_cache
    self.cache = apt.Cache()
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 89, in __init__
    self.open(progress)
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 127, in open
    self._cache = apt_pkg.Cache(progress)
SystemError: E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/nl.archive.ubuntu.com_ubuntu_dists_natty_main_binary-amd64_Packages, E:De pakketlijsten of het statusbestand konden of niet ontleed, of niet geopend worden.

[J. Austin Rodriguez (jeanaustinr)]

Hi Vannoise, some lines are not in English. Could you please translate it? Also, if this bug can be reproduced kindly add the steps to. Thank you for reporting and we'll wait for your reply.