Tente executar esses comandos no terminal
sudo rm / var / lib / apt / lists / * -vf
sudo apt-get update
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/archive.canonical.com_ubuntu_dists_quantal_partner_i18n_Translation-en%5fUS
E: The package lists or status file could not be parsed or opened.
E: _cache->open() failed, please report.
Alguém pode resolvê-lo?
Tente executar esses comandos no terminal
sudo rm / var / lib / apt / lists / * -vf
sudo apt-get update