CoppeliaSim forums

Hi,

in my code i use to publish my joint states

That works fine at first, but as soon as I try to subscribe to /joint_states (for example with rostopic echo /joint_states) V-Rep Crashes with: "Segmentation fault (core dumped)"

The Ros-Plugin is loaded successfully at startup.

Regards

Hello,

we have tried your example on ROS Fuerte and ROS Hydro, without problem. I guess it is specifically linked to ROS Indigo.. maybe you could try to recompile the ROS plugin?

Cheers

Recompiling the plugin helped, thanks a lot!!

Just a little notice:
When I first tried to compile the plugin it gave me an error, that the dependency to opencv2 is unresolved. As I found out opencv is no longer released as a Ros Package in Indigo.
http://wiki.ros.org/opencv2

So I just deleted the opencv dependency entry in the manifest.xml and then it compiled. (Same for the vrep_common package)

Regards

I have the same problem. I use the V-Rep 3.1.2 64 bits with Ubuntu 14.04 64 bits and Ros Indigo. The publishers work well but my subscribers close the V-Rep with message "Segmentation fault (core dumped)". I tried to recompile the vrep plugin and vrep_common but the error continues. The same scene works correctly in Hydro and Fuerte. Any idea to solve this issue?

The subscriber code (in lua) is specified below. The same error occurs with example rosTopicPublisherAndSubscriber.ttt (included in V-Rep). Sometimes the V-Rep closes with another message, as follows.

"terminate called after throwing an instance of 'std::logic_error'
what(): basic_string::_S_construct null not valid
Aborted (core dumped)"

I solved these problems with the following steps.

1) download V-Rep 3.1.2 64 bits again
2) copy the vrep_plugin from vrep-installation/programming/ros_packages to catkin_ws/src
3) change CMakeLists.txt of vrep_plugin to Indigo libraries "link_directories("/opt/ros/indigo/lib")"
4) compile plugin "roscd vrep_plugin and catkin_make"
5) copy the builded plugin form /devel/lib/libv_repExtRos.so to v-rep installation directory

Thanks for mentionning this Andres!

Cheers

could you creat a video about the installation method, please?

:(