I found some information about the problem, like "http://analuciacruz.me/articles/RosInterface_kinetic/" , "https://github.com/lagadic/vrep_ros_bridge.git". (1) For vreprosbridge, can it still be installed on ubuntu16.04 with Vrep3.4 and ROs(kinetic) ? (2) For RosInterface , I always meet mistakes. (3) I download Vrep3.4, but there is a file ''rosvreprosinterfaceinstall.sh'' in /V-REPPROEDUV340Linux/programming/rospackages/vrepExtRosInterface/extra in the file , VREPRELEASE="V-REPPROEDUV33264Linux" VREPROOT="$VREPDESTDIR/$VREPRELEASE" but you know , i download vrep3.4.0 Why?