Otherwise will see errors like the following when using this within a catkin install workspace:
...inlib/././class_loader_imp.hpp:263]: Skipped loading plugin with error: XML Document '/home/lucasw/install_catkin_ws/install/share/ffmpeg_image_transport/ffmpeg_plugins.xml' has no Root Element. This likely means the XML is malformed or missing..
Truth be told I never ever run catkin install. Just catkin build, then run everything out of the devel directory. So this is most likely not the only thing about the install target that is broken.
Otherwise will see errors like the following when using this within a catkin install workspace: