Hi Amy,
libgazebo_ros_time.so is in gazebo_plugins.  So most likely gazebo_plugins
did not compile correctly.  Also, can you point me to the exact commands you
used to bring up the world?
thanks,
John

On Wed, May 12, 2010 at 3:31 PM, Amy Ng <amyntt@gmail.com> wrote:

> Hi everybody
>
> I am new here.
>
> I have just installed gazebo-tools and pr2-gazebo as per instructions on
> web site and when i tried to run empty world I got this error:
>
> ODE Message 2: inertia must be positive definite in dMassCheck() File
> mass.cpp Line 53
> Error Loading Gazebo
> /home/tingting/ros/stacks/simulator_gazebo/gazebo/gazebo-svn/server/Simulator.cc:240
> : Exception: Failed to load the World
> /home/tingting/ros/stacks/simulator_gazebo/gazebo/gazebo-svn/server/controllers/ControllerFactory.cc:116
> : Exception: Failed to load libgazebo_ros_time.so: file not found
>
>
> I have no idea where can i find libgazebo_ros_time.so and where should i
> put it
>
> any help will be great.
>
> thanks
>
> Amy
>
>
> _______________________________________________
> ros-users mailing list
> ros-users@code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users
>
>