[Bug 830816] Re: E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_natty_main_binary-amd64_Packages, E:The package lists or status file could not be parsed or opened.

[RedSingularity]

Try running this:

sudo rm /var/lib/apt/lists/us.archive.ubuntu
.com_ubuntu_dists_natty_main_binary-amd64_Packages

See if that clears the error. 
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** Changed in: ubuntu
       Status: New => Incomplete

** Package changed: ubuntu => update-manager (Ubuntu)

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https://bugs.launchpad.net/bugs/830816

Title:
  E:Encountered a section with no Package: header, E:Problem with
  MergeList /var/lib/apt/lists/us.archive.ubuntu
  .com_ubuntu_dists_natty_main_binary-amd64_Packages, E:The package
  lists or status file could not be parsed or opened.

Status in “update-manager” package in Ubuntu:
  Incomplete

Bug description:
  Could not initialize the package information

  An unresolvable problem occurred while initializing the package
  information.

  Please report this bug against the 'update-manager' package and
  include the following error message:

  'E:Encountered a section with no Package: header, E:Problem with
  MergeList /var/lib/apt/lists/us.archive.ubuntu
  .com_ubuntu_dists_natty_main_binary-amd64_Packages, E:The package
  lists or status file could not be parsed or opened.'

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