Package is not found after running roscore
I use catkin_make to build a package. It works . I then proceed to source the generated setup file in order to add my workspace to my ROS environment. (. ~/catkin_ws/devel/setup.bash). Using rospack I can display the dependecies of the package. But then when I run roscore and look again for package (or use rosrun) I get and error that there is no such package. . Did I miss a step?