I am having some trouble setting up a new MAVLink message. I edited the common.xml file as described in the documentation, but when I try to build the PX4 stack, I am getting errors that parameters such as MAVLINK_MSG_ID_MY_MESSAGE does not exist. An when I look in the message_definitions folder, my new message does not appear in the list of headers.
How do I go about generating the header file for my new message?
Perhaps as an aside, the page that is supposed to tell me how to do this is not functioning. here