benben@debian:~/goagent$ sudo apt-get install sqlite3Reading package lists... DoneBuilding dependency tree       Reading state information... DoneSome packages could not be installed. This may mean that you haverequested an impossible situation or if you are using the unstabledistribution that some required packages have not yet been createdor been moved out of Incoming.The following information may help to resolve the situation:The following packages have unmet dependencies:sqlite3 : Depends: libsqlite3-0 (= 3.7.13-1+deb7u1) but 3.7.17-1~bpo70+1 is to be installedE: Unable to correct problems, you have held broken packages.How may I use sqlite3?benben@debian:~$ sudo dpkg -l | grep bpo | grep libsqliteri  libsqlite3-0:amd64                    3.7.17-1~bpo70+1                   amd64        SQLite 3 shared libraryHere is the output of dependencies. It seems a lot of common packages depend on it.I'm not sure about this, but I think maybe once I tried to install some package in unstable, which updated the libsqlite3-0 package automatically.How may I rescue?benben@debian:~$ apt-cache --installed rdepends libsqlite3-0libsqlite3-0Reverse Depends:  libnss3  iceweasel  libyelp0  libwebkitgtk-3.0-0  libtracker-sparql-0.14-0  telepathy-salut  telepathy-logger  libtelepathy-logger2  telepathy-gabble  libseed-gtk3-0  python3.2  python2.7  python2.6  packagekit  libpackagekit-glib2-14  libnss3  libsoup-gnome2.4-1  libgpod4  libchamplain-0.12-0  iceweasel  gnome-settings-daemon  gnome-packagekit  glchess  libedataserverui-3.0-1  libedata-book-1.2-13  libebook-1.2-13  libebackend-1.2-2  libcamel-1.2-33  evolution-data-server  colord  aptitude  libaprutil1-dbd-sqlite3
Debian(amd64) Wheezy downgrading libsqlite3-0
sqlite