Hi everyone, i'm having trouble in making my own rqt plugin in c++. I want to write a plugin that subscribes to /odom topic. With the odometry data, i want to draw the trajectory of the robot with Qwt. I made the code, did the catkin_make and everything worked fine. Nevertheless when I open rqt and try to launch the plugin, i get the following error :

[ERROR] [1459848732.059769566]: Failed to load nodelet [odom_plugin/OdomPlugin_1] of type [odom_plugin/OdomPlugin]: Failed to load library /local/etienne/ros/catkin_ws/devel/lib//libodom_plugin.so. Make sure that you are calling the PLUGINLIB_EXPORT_CLASS macro in the library code, and that names are consistent between this macro and your XML. Error string: Could not load library (Poco exception = /local/etienne/ros/catkin_ws/devel/lib//libodom_plugin.so: undefined symbol: _ZTVN11odom_plugin10OdomPluginE)
RosPluginlibPluginProvider::load_explicit_type(odom_plugin/OdomPlugin) failed creating instance PluginManager._load_plugin() could not load plugin "odom_plugin/OdomPlugin": RosPluginlibPluginProvider.load() could not load plugin "odom_plugin/OdomPlugin"

I know this is exactly the same error, of very similar to this topic : http://answers.ros.org/question/206363/rqt-plugin-undefined-symbol/ But i didn't understand how the man solved his problem.

I only have a header and source file, i give you links of the file just above :

header : http://textuploader.com/5wo0z

source : http://textuploader.com/5wo0w

plugin.xml : http://textuploader.com/5wo03

package.xml : http://textuploader.com/5wok5

CMakeLists.txt : http://textuploader.com/5wok0

I really don't know here to look, so if someone could point me on my error or give me a track it would be really nice. Thank you in advance!