Traceback (most recent call last): File "/usr/sbin/update-apt-xapian-index", line 102, in indexer.incrementalUpdate() File "/usr/lib/pymodules/python2.7/axi/indexer.py", line 646, in incrementalUpdate self.updateIndex(dbpath) File "/usr/lib/pymodules/python2.7/axi/indexer.py", line 606, in updateIndex cache = self.aptcache() File "/usr/lib/pymodules/python2.7/axi/indexer.py", line 382, in aptcache self.apt_cache = apt.Cache(memonly=True, progress=aptprogress) 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/gb.archive.ubuntu.com_ubuntu_dists_natty_main_binary-i386_Packages, E:The package lists or status file could not be parsed or opened.