[ros-users] pr2_simulator woes in Box Turtle

Ken Conley kwc at willowgarage.com
Mon Mar 8 16:14:15 UTC 2010

Hi Stefan,

I went ahead and added the pr2_simulator to the PR2 Install, as it was
intended to be there.


As you note, you should be able to just checkout the pr2_simulator
stack separately into the 'stack's directory. The setup file there
will put it into your environment.

 - Ken

On Mon, Mar 8, 2010 at 4:24 AM, Stefan Kohlbrecher
<stefan.kohlbrecher at googlemail.com> wrote:
> Hi,
> I installed Box Turtle (PR2 Install) on my machine and wanted to play
> around with some of the pr2 simulation tutorials. This didn't work
> though, because the "pr2_simulator" stack doesn't seem to be part of
> Box Turtle (which is understandable as it's supposed to run on the
> real PR2). What is the "best practice" way of installing the
> pr2_simulator stack, do I just create the directory "pr2_simulator" in
> "stacks" and checkout the corresponding svn into that directory?
> I was also surprised that I couldn´t start the empty world Gazebo
> example. "rosmake gazebo" works finde, but "roslaunch gazebo
> empty_world.launch" results in a lengthy error report with this at the
> end:
>  File "/home/stefan/ros/ros/core/roslib/src/roslib/packages.py", line
> 213, in get_pkg_dir
>    raise InvalidROSPkgException("Cannot locate installation of
> package %s: %s. ROS_ROOT[%s] ROS_PACKAGE_PATH[%s]"%(package,
> rperr.strip(), ros_root, ros_package_path))
> InvalidROSPkgException: Cannot locate installation of package
> pr2_gazebo_plugins: [rospack] couldn't find package
> [pr2_gazebo_plugins]. ROS_ROOT[/home/stefan/ros/ros]
> ROS_PACKAGE_PATH[/home/stefan/ros-tutorials/ros_pkg_tutorials:/home/stefan/ros-tutorials/ros_tutorials:/home/stefan/ros/stacks]
> This apparently is caused by the missing "pr2_simulator" stack. I'm
> surprised by that because I expected that a empty world Gazebo example
> should be independent of the pr2 simulation stack and should run
> regardless of it existing or missing.
> I'm not quite sure if all that is expected behavior or if I'm doing
> something wrong, so thanks for the help in advance.
> regards,
> Stefan
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