# Revision history [back]

The Pioneer3at model uses the SkidSteerPlugin, which is included with gazebo. I have the gazebo-current deb installed and I have the following files in my /usr folder:

\$ find /usr | grep SkidSteer
/usr/lib/x86_64-linux-gnu/gazebo-2.2/plugins/libSkidSteerDrivePlugin.so
/usr/include/gazebo-2.2/gazebo/plugins/SkidSteerDrivePlugin.hh


You may not be able to find the plugins because they are not in a standard path location. There is a setup script for Gazebo that can help setup environment variables properly:

source /usr/share/gazebo/setup.sh


Can you provide console error messages if this doesn't help?