building beginner_tutorials returns "No Makefile in package" errors

edit

I'm new in the world of ROS and have just installed ROS (Fuerte). I'm trying to make my way through the tutorial steps, but I'm encountering some problems. When I execute 'rosmake beginner_tutorials' in step 4 (1.2.1. Using rosmake) I get the following messages:

[rosmake-0] Starting >>> std_msgs [ make ]                                                                                   
[rosmake-0] Finished <<< std_msgs ROS_NOBUILD in package std_msgs
 No Makefile in package std_msgs                           
[rosmake-0] Starting >>> roslang [ make ]                                                                                    
[rosmake-0] Finished <<< roslang ROS_NOBUILD in package roslang
 No Makefile in package roslang                              
[rosmake-0] Starting >>> rospy [ make ]                                                                                      
[rosmake-0] Finished <<< rospy ROS_NOBUILD in package rospy
 No Makefile in package rospy                                    
[rosmake-0] Starting >>> roscpp [ make ]                                                                                     
[rosmake-0] Finished <<< roscpp ROS_NOBUILD in package roscpp
 No Makefile in package roscpp                                 
[rosmake-0] Starting >>> beginner_tutorials [ make ]

The building process completes quickly and reports 0 failures.

The above messages and the short building time are not what I expected based on the tutorial information.

What is going wrong here ?