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rosrun does not find anything, because you do not build anything. I.e. there is no executable.

In the CMakelists.txt, you need to tell CMake, which is called by catkin_make, which source files you want to compile into which executable. This is what the add_executable and add_library calls are for. Check the book, this should be explained therein and you probably just need to uncomment the respective lines, together with the target_link_libraries calls for the respective targets. Or check the wiki tutorials.