Tutorial for creating package: I get error that cpp_common depends on non-existent package

I am setting up Kinetic on Ubuntu 16, and just finished the tutorial on creating a new package: http://wiki.ros.org/ROS/Tutorials/CreatingPackage It worked well for the most part, and I got the publisher/subscriber (in python) example working based on the beginner_tutorials package I created. However, when I try to check the dependencies using `rospack depends1 beginner_tutorials` I get the following error: [rospack] Error: package 'cpp_common' depends on non-existent package 'boost' and rosdep claims that it is not a system dependency. Check the ROS_PACKAGE_PATH or try calling 'rosdep update' When I run `rosdep update` I continue getting the error. I know that boost is a C++ package, and I am so far doing everything in Python, so haven't done any serious C++ development on this machine.