when i install the rosserial,i fllow the rosserial_arduino Tutorials

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when i install the rosserial,i fllow the " rosserial_arduino / Tutorials" run the commond:

rosrun rosserial_arduino make_libraries.py .

there are some errors. is there some thing wrong? thanks!

 *** Warning, failed to generate libraries for the following packages: ***
    pr2_description (missing dependency: convex_decomposition)
Traceback (most recent call last):
  File "/home/li/catkin_ws/install/share/rosserial_arduino/make_libraries.py", line 91, in <module>
    rosserial_generate(rospack, path+"/ros_lib", ROS_TO_EMBEDDED_TYPES)
  File "/home/li/catkin_ws/install/lib/python2.7/dist-packages/rosserial_client/make_library.py", line 584, in rosserial_generate
    raise Exception("Failed to generate libraries for: " + str(failed))
Exception: Failed to generate libraries for: ['pr2_description (missing dependency: convex_decomposition)']