Are you sure that rostopic is running with the same ROS_PACKAGE_PATH and that the messages are built correctly? A quick test:

{{{

!/usr/bin/env python

import roslib roslib.load_manifest('mocap_msgs') import mocap_msgs.msg

print mocap_msgs.LocalMocapFrame }}}

Are you sure that rostopic is running with the same ROS_PACKAGE_PATH and that the messages are built correctly? A quick test:

#!/usr/bin/env python
import roslib
roslib.load_manifest('mocap_msgs')
import mocap_msgs.msg
mocap_msgs.msg
  
print mocap_msgs.LocalMocapFrame
}}}

Are you sure that rostopic is running with the same ROS_PACKAGE_PATH and that the messages are built correctly? A quick test:

#!/usr/bin/env python
import roslib
roslib.load_manifest('mocap_msgs')
import mocap_msgs.msg

print mocap_msgs.LocalMocapFrame
mocap_msgs.msg.LocalMocapFrame