install libforms-dev libdbd-mysql-ruby libxmp2 libinline-octave-perl libgnomeada2-dev Reading package lists... Building dependency tree... Reading state information... Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: freeglut3 : Depends: xlibmesa-gl but it is not going to be installed or libgl1 Depends: xlibmesa-glu but it is not going to be installed or libglu1 libforms-dev : Depends: libxpm-dev but it is not going to be installed PreDepends: x11-common (>= 1:7.0) but it is not going to be installed libgnomeada2-dev : Depends: libgtk2.0-dev but it is not going to be installed Depends: libglade2-dev but it is not going to be installed Depends: libgnomeui-dev but it is not going to be installed Depends: libgtkada2-dev (= 2.8.1-5) but it is not going to be installed Depends: libgnomeada-2.8 (= 2.8.1-5) but it is not going to be installed E: Broken packages