Hello, I'm new to ROS and trying to work through the installation and tutorials, but I'm having a little trouble and I'd love it if someone might be able to help. I'm running 64-bit Fedora 12. Following directions on http://www.ros.org/wiki/ROS/Installation/Fedora, I've installed ROS in /opt/ros, and the ROS tutorials in /opt/ros-tutorials. When I try Step 1.2 in the "Creating a ROS package" tutorial, though, it tells me there is no such package "ros_tutorials". Below is a sequence of commands showing more detail. I noticed that the file "/opt/ros-tutorials/setup.sh" is empty, whereas "/opt/ros/setup.sh" has the contents you see below. Is that correct? Or should that setup file have more environment setup contents? Thanks for any advice; if there's any other information that would be helpful, let me know. Mike 12:57:13 [michael@tablet ~]$ roscd ros_tutorials roscd: No such package 'ros_tutorials' 12:57:37 [michael@tablet ~]$ echo $ROS_ROOT /opt/ros/ros 12:57:44 [michael@tablet ~]$ ls /opt/ros* /opt/ros: ros setup.sh stacks this.rosinstall /opt/ros-tutorials: ros_pkg_tutorials ros_tutorials setup.sh this.rosinstall 12:57:52 [michael@tablet ~]$ cat /opt/ros-tutorials/setup.sh 12:58:15 [michael@tablet ~]$ cat /opt/ros/setup.sh export ROS_ROOT=/opt/ros/ros export PATH=$ROS_ROOT/bin:$PATH export PYTHONPATH=$ROS_ROOT/core/roslib/src:$PYTHONPATH if [ ! "$ROS_MASTER_URI" ] ; then export ROS_MASTER_URI=http://localhost:11311 ; fi export ROS_PACKAGE_PATH=/opt/ros/stacks source $ROS_ROOT/tools/rosbash/rosbash 13:02:13 [michael@tablet ~]$