how to load multi-library

[xuefengchang]

I am trying to use ros::pluginlib to load a plugin called A_Plugin which has been registered to ROS Package System correctly. One thing to note is that A_Plugin depends on Opensplice DDS, and it need to link the DDS libraries "libddskernel.so" ,"libdcpsisocpp.so". In CmakeLists.txt file, I write like this:
add_library(A_Plugin
src/aplugin.cpp
)
target_link_libraries(A_Plugin
$ENV{OSPL_HOME}/lib/libddskernel.so
$ENV{OSPL_HOME}/lib/libdcpsisocpp.so
)
It can be registered to ROS package system correctly, but when I use pluginlib::ClassLoader to load A_plugin, I got the following errors:terminate called after throwing an instance of 'pluginlib::CreateClassException'what(): MultiLibraryClassLoader: Could not create object of class type test::A_Plugin as no factory exists for it. Make sure that the library exists and was explicitly loaded through MultiLibraryClassLoader::loadLibrary(). How can I solve this problem? Thanks!

[xuefengchang]

The problem is caused by the wrong lib-name.