[CM] Handle other exceptions while loading the controller plugin (#1731)

(cherry picked from commit 045b060)

controller_manager/src/controller_manager.cpp

@@ -556,13 +556,21 @@ controller_interface::ControllerInterfaceBaseSharedPtr ControllerManager::load_c
  controller = chainable_loader_->createSharedInstance(controller_type);
  }
  }
- catch (const pluginlib::CreateClassException & e)
+ catch (const std::exception & e)
  {
  RCLCPP_ERROR(
- get_logger(), "Error happened during creation of controller '%s' with type '%s':\n%s",
+ get_logger(), "Caught exception while loading the controller '%s' of plugin type '%s':\n%s",
  controller_name.c_str(), controller_type.c_str(), e.what());
  return nullptr;
  }
+ catch (...)
+ {
+ RCLCPP_ERROR(
+ get_logger(),
+ "Caught unknown exception while loading the controller '%s' of plugin type '%s'",
+ controller_name.c_str(), controller_type.c_str());
+ throw;
+ }
 
  ControllerSpec controller_spec;
  controller_spec.c = controller;