It's because in the package control file 'Section' is set to 'utils', which won't work with the application manager. It only accepts Sections in 'user'. There are three ways to fix it: 1) - The author modifies the control file and makes a new package 2) - or you install the existing one by downloading, sudo gainroot, dpkg -i gps_clockd_1.0-3_armel.deb 3) - or you try the modified package that I attach here (untested), which is the original but with a very small change: Section is now 'user/utils' instead of 'utils'.