Hi
I am using ROS-kinetic on Ubunutu 16.04. I tried to build MoveIt! by source installation through this [link](https://moveit.ros.org/install/source/). I also have also installed KUKA IIWA from this [link ](https://github.com/IFL-CAMP/iiwa_stack). When i run the command:
> roslaunch iiwa_moveit demo.launch
I get following error:
> rviz:> /build/ogre-1.9-mqY1wq/ogre-1.9-1.9.0+dfsg1/OgreMain/src/OgreSceneManager.cpp:830:> virtual Ogre::SceneNode*> Ogre::SceneManager::createSceneNode():> Assertion> `mSceneNodes.find(sn->getName()) ==> mSceneNodes.end()' failed.>> [iiwa/rviz_Pulkit_2784_189040138593868182-5]> process has died [pid 2863, exit code> -6, cmd /opt/ros/kinetic/lib/rviz/rviz -d /home/bhoot/effort_ws/src/iiwa_stack/iiwa_moveit/launch/moveit.rviz> robot_description:=/iiwa/robot_description> /move_group/fake_controller_joint_states:=/iiwa/move_group/fake_controller_joint_states> /get_planning_scene:=/iiwa/get_planning_scene> __name:=rviz_Pulkit_2784_189040138593868182> __log:=/home/bhoot/.ros/log/f225e654-17af-11e9-8e26-a08cfdeabd87/iiwa-rviz_Pulkit_2784_189040138593868182-5.log].> log file:> /home/bhoot/.ros/log/f225e654-17af-11e9-8e26-a08cfdeabd87/iiwa-rviz_Pulkit_2784_189040138593868182-5*.log
and RViz Crashes. I tried to look for a solution and referred to this [ros-answer](https://answers.ros.org/question/195684/rviz-crashes-ogre/) also, but problem was not solved.
Can someone help ??
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