Issue with MoveIt Tutorials

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Hello,

I try to launch the tutorials from MoveIt, but it's not working, I get this error message :

ERROR: cannot launch node of type [pr2_moveit_tutorials/kinematic_model_tutorial]: can't locate node [kinematic_model_tutorial] in package [pr2_moveit_tutorials]

I have installed ROS and moveit with instructions from

• [ROS] www.ros.org/wiki/groovy/Installation/Ubuntu
• [MoveIt] moveit.ros.org/wiki/index.php/Groovy/Installation

not from sources.

I tried to install from sources but I had another issue : RViz refused to launch, it throw me this error :

rviz: /build/buildd/ogre-1.7.4/OgreMain/src/OgreSceneManager.cpp :807 : virtual Ogre::SceneNode* Ogre::SceneManager::createSceneNode(): the assertion « mSceneNodes.find(sn->getName()) == mSceneNodes.end() » has failed.

Can anybody help me?

THanks!

Ben