I am trying to install Mplayer or VLC player on ubuntu feisty but i can't do it. I try with apt-get: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run `apt-get -f install' to correct these: The following packages have unmet dependencies: mplayer: Depends: libasound2 (> 1.0.16) but 1.0.13-1ubuntu5 is to be installed Depends: libavcodec51 (>= 0.svn20080206-8) but it is not going to be installed or libavcodec-unstripped-51 (>= 0.svn20080206-8) but it is not installable Depends: libavformat52 (>= 0.svn20080206-8) but it is not going to be installed or libavformat-unstripped-52 (>= 0.svn20080206-8) but it is not installable Depends: libavutil49 (>= 0.svn20080206-8) but it is not going to be installed or libavutil-unstripped-49 (>= 0.svn20080206-8) but it is not installable Depends: libcaca0 (>= 0.99.beta14-1) but 0.99.beta11.debian-2build1 is to be installed Depends: libcdparanoia0 (>= 3.10.2+debian) but 3.10+debian~pre0-4build1 is to be installed Depends: libcucul0 (>= 0.99.beta14-1) but 0.99.beta11.debian-2build1 is to be installed Depends: libfaad0 (>= 2.6.1) but it is not going to be installed Depends: libfribidi0 (>= 0.10.9) but 0.10.7-4build1 is to be installed Depends: libgif4 (>= 4.1.6) but it is not going to be installed Depends: libjack0 (>= 0.109.2) but it is not going to be installed Depends: liblzo2-2 but it is not going to be installed Depends: libopenal1 but it is not going to be installed Depends: libpostproc51 (>= 0.svn20080206-8) but it is not going to be installed or libpostproc-unstripped-51 (>= 0.svn20080206-8) but it is not installable Depends: libspeex1 (>= 1.2~beta3-1) but 1.1.12-3 is to be installed Depends: libsvga1 Depends: libswscale0 (>= 0.svn20080206-8) but it is not going to be installed or libswscale-unstripped-0 (>= 0.svn20080206-8) but it is not installable Depends: mplayer-skin python-apt: Depends: libapt-inst-libc6.7-6-1.1 Depends: libapt-pkg-libc6.7-6-4.6 scim-gtk2-immodule: Depends: libscim8c2a (>= 1.4.6) but 1.4.4-7ubuntu1 is to be installed scim-modules-socket: Depends: libscim8c2a (>= 1.4.6) but 1.4.4-7ubuntu1 is to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). I try apt-get -f install but it doesn't work neither. What to do please help me ?!