assemble robot using GUI
You should install ROS( https://www.ros.org/ ) before install robot_assembler
mkdir new_ws; cd new_ws
$ wstool init src
https://github.com/agent-system/robot_assembler/raw/master/config/robot_assembler.rosinstall
OR you can merge existing workspace
$ wstool merge -t src
https://github.com/agent-system/robot_assembler/raw/master/config/robot_assembler.rosinstall
rosdep install -q -y -r --from-paths src --ignore-src
catkin build robot_assembler source devel/setup.bash