I am using Ubuntu 16.04 64-bit.V-REP 3.5.0 64 bit.ROS Kinetic desktop full, joystick and brics actuator packages. I try to run a simple robot simulation. In the terminal I type roscore, then I initialize V-rep, and then I open a simple simulation code which is in *.ttt file. After all, I type command "roslaunch vrep_apps base.launch" but I get an error message as follows:

[base.launch] is neither a launch file in package [vrepapps] nor is [vrepapps] a launch file name The traceback for the exception was written to the log file.