Comment 2 for bug 1371974

Exception during installation:
Sep 20 17:31:32 ubuntu /plugininstall.py: Traceback (most recent call last):
Sep 20 17:31:32 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1770, in <module>
Sep 20 17:31:32 ubuntu /plugininstall.py: install.run()
Sep 20 17:31:32 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 78, in wrapper
Sep 20 17:31:32 ubuntu /plugininstall.py: func(self)
Sep 20 17:31:32 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 252, in run
Sep 20 17:31:32 ubuntu /plugininstall.py: self.remove_extras()
Sep 20 17:31:32 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1455, in remove_extras
Sep 20 17:31:32 ubuntu /plugininstall.py: cache = Cache()
Sep 20 17:31:32 ubuntu /plugininstall.py: File "/usr/lib/python3/dist-packages/apt/cache.py", line 107, in __init__
Sep 20 17:31:32 ubuntu /plugininstall.py: self.open(progress)
Sep 20 17:31:32 ubuntu /plugininstall.py: File "/usr/lib/python3/dist-packages/apt/cache.py", line 151, in open
Sep 20 17:31:32 ubuntu /plugininstall.py: self._cache = apt_pkg.Cache(progress)
Sep 20 17:31:32 ubuntu /plugininstall.py: SystemError: E:Encountered a section with no Package: header, E:Problem with MergeList /target/var/lib/apt/lists/gt.archive.ubuntu.com_ubuntu_dists_trusty_main_i18n_Translation-en, E:No se pudieron analizar o abrir las listas de paquetes o el archivo de estado.
Sep 20 17:31:32 ubuntu /plugininstall.py: