Comment by Marco Poli for There has been a recent change in the rosdistro system, and tools such as rosdep have been updated. I would recommend the following two things:Make sure rosdep is up to date:sudo apt-get updatesudo apt-get install python-rosdepRun sudo rosdep init to reinitialize your /etc/ros/rosdep/sources.list.d, then rosdep update to update your local cache

I had just installed rosdep for the first time using "$ sudo easy_install wstool rospkg rosdep". Will try the package version. Just cheked: I am running version 0.10.15, which is the same in the package system. Just reminding: this is a Raspbian, not Ubuntu. Thanks!