Buenas ,cuando abro el gestor de paquetes ,me sale esto:E: Línea 40 mal formada en la lista de fuentes /etc/apt/sources.list (análisis de URI)
E: No se pudo leer la lista de fuentes.
Vaya al diálogo del repositorio para corregir el problema.
E: _cache->open() failed, please report.
Mirando por internet e visto que hay que poner este comando :sudo gedit /etc/apt/sources.list
# deb cdrom:[Lubuntu 12.04 _Precise Pangolin_ - Release i386 (20120423)]/ precise main multiverse restricted universe
# See
http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb
http://es.archive.ubuntu.com/ubuntu/ precise main restricted multiverse
deb-src
http://es.archive.ubuntu.com/ubuntu/ precise restricted main universe multiverse #Added by software-properties
## Major bug fix updates produced after the final release of the
## distribution.
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb
http://es.archive.ubuntu.com/ubuntu/ precise universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb
http://archive.canonical.com/ubuntu precise partner
# deb-src
http://archive.canonical.com/ubuntu precise partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb
http://extras.ubuntu.com/ubuntu precise main
deb-src
http://extras.ubuntu.com/ubuntu precise main
deb c sudo add-apt-repository deb
deb-src c sudo add-apt-repository deb
Tambien me pasa cuando voy a desistalar algún programa ocuando voy a instalar en formato all.deb
de antemano, muchas gracias
