Hi Ali, i am not sure but it seems as rosdep script would misbehave. What you can also do is of course to simply apt-get install system dependencies from the below list for which rosdep is claiming not to be able to resolve them. It is none of my business, but why are you running as root user? On Jan 3, 2011 8:39 PM, "Ali Abbas" wrote: Thanks for your quick reply I had used this command and following log is generated root@CS-02990DT:/opt/ros/cturtle/stacks# rosdep satisfy rosprolog Failed to find rosdep swi_prolog_sgml for package rosprolog on OS:ubuntu version:9.10 Failed to find... ERROR: ABORTING: Rosdeps [u'swi_prolog_sgml', u'swi_prolog_clib', u'swi_prolog_semweb', u'swi_prolog', u'swi_prolog_odbc', u'swi_prolog_http', u'swi_prolog_xpce'] cou... I need more advice -- View this message in context: http://ros-users.122217.n3.nabble.com/Make-process-of-rosprolog-does-not-find-depends-pakages-tp2184079p2184233.html Sent from the ROS-Users mailing list archive at Nabble.com. ________________________________________...