Comment by po1 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

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