Package location after catkin_make install

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Hi, I am working with my version of the ros_arduino_bridge package and I am having some problems with the install. I forked it from github into my ~/catkin_ws/src folder and then ran catkin_make install from ~/catkin_ws/ . When I run roslaunch ros_arduino_python arduino.launch

lukas@lukas-Inspiron-N7010:~$ roslaunch ros_arduino_python arduino.launch

... logging to /home/lukas/.ros/log/0853208e-ce73-11e4-8f0d-1c659d0cfa61/roslaunch-lukas-Inspiron-N7010-6050.log

Checking log directory for disk usage. This may take awhile.

Press Ctrl-C to interrupt

Done checking log file disk usage. Usage is <1GB.

error loading <rosparam> tag:
        file does not exist [/home/lukas/catkin_ws/src/ros_arduino_bridge/ros_arduino_python/config/my_arduino_params.yaml]
XML is <rosparam command="load" file="$(find ros_arduino_python)/config/my_arduino_params.yaml"/>
The traceback for the exception was written to the log file

Now I know from previous testing that the problem is that I haven't specified the full path to the .yaml file. So I need to modify the my_arduino_params.yaml file. Here is my problem: When I roscd to the package there is nothing in the folder except for a CMakeLists.txt and a package.xml file. Now I may just be a noob but could some knowledgable sage enlighten me as to where catkin stores these files? Thanks, luketheduke