Hello ROS community! @admin: sorry for the previous post https://code.ros.org/lurker/message/20120118.133134.5d175f25.en.html which you can delete. At the given link, I sent the email as HTML email, thus it was added as attachment and the text therefore won't be shown directly. So I posted it again as a plain text email. I have created a package following the instructions on this website: http://www.ros.org/wiki/rosjava/Build Then I included the trajectory_msgs package as a dependency in the manifest.xml file. When doing a rosmake on that newly created package, I'll get a build error saying, a certain package (std_msgs) could not be found. When deleting that dependency, rosmake works fine. This seems to be a bug which is caused when rosmaking packages which are dependent on message packages which are again dependent on other message packages. In other words, if a dependency is a package containing messages, which again depend on messages in another package, the build will fail. Can someone confirm that?