I'm following this tutorial: http://www.ros.org/wiki/nodelet/Tutorials/Porting%20nodes%20to%20nodelets

When I try to launch my nodelet I receive the following error:

waitForService: Service [/standalone_nodelet/load_nodelet] has not been advertised, waiting...
terminate called after throwing an instance of 'std::logic_error'
what():  basic_string::_S_construct null not valid