ubuntu@ubuntu-armhf:/opt/ros/hydro/ardrone_autonomy$ rosmake
[ rosmake ] rosmake starting...
[ rosmake ] No package or stack specified.  And current directory 'ardrone_autonomy' is not a package name or stack name.
[ rosmake ] Packages requested are: []
[ rosmake ] Logging to directory /home/ubuntu/.ros/rosmake/rosmake_output-20150228-072638
[ rosmake ] Expanded args [] to:
[]
[ rosmake ] ERROR: No arguments could be parsed into valid package or stack names.