I'm working on the rosserial_arduino/Tutorials/Hello World tutorial and when I compile the example code I get this error message:

In file included from /home/ryan/sketchbook/libraries/roslib/ros.h:38:0, from HelloWorld.cpp:6: /home/ryan/sketchbook/libraries/roslib/ros/nodehandle.h:39:38: fatal error: rosserialmsgs/TopicInfo.h: No such file or directory compilation terminated.

I've tried copying and pasting files and folders with no luck. I'm thinking maybe Arduino can't find my ros_workspace folder?

Any ideas?