Libgazebo_player - Can't connect Player with Gazebo

edit

Hi, I installed Gazebo 4.0 a couple of days ago and I've been trying to connect it with player. I have player/stage working already on my computer, so I don't have any idea what does this error message means (also "gzserver" doesn't respond). I will really appreciate it if someone could give me some guidance. Thank you in advance :)

Registering driver
Player v.3.0.2

* Part of the Player/Stage/Gazebo Project [http://playerstage.sourceforge.net].
* Copyright (C) 2000 - 2009 Brian Gerkey, Richard Vaughan, Andrew Howard,
* Nate Koenig, and contributors. Released under the GNU General Public License.
* Player comes with ABSOLUTELY NO WARRANTY.  This is free software, and you
* are welcome to redistribute it under certain conditions; see COPYING
* for details.

invoking player_driver_init()...
error   : failed to resolve player_driver_init: /usr/local/lib/libgazebo_player.so: undefined symbol: player_driver_init

error   : failed to initialise plugin: libgazebo_player
error   : failed to parse config file position.cfg driver blocks

.world

 <?xml version="1.0"?>
<gazebo version="1.0">
  <world name="default">
    <!-- Ground -->
    <include>
      <uri>model://ground_plane</uri>
    </include>

    <!-- Pioneer2dx model -->
    <include>
      <uri>model://pioneer2dx</uri>
    </include>

    <!-- A global light source -->
    <include>
      <uri>model://sun</uri>
    </include>
  </world>
</gazebo>

.cfg

driver
(
  name "gazebo"
  provides ["simulation:0"]
  plugin "libgazebo_player"

  #server_id "default"
  # The name of a runnign Gazebo world, specified in a .world file
  world_name "default"

)

driver
(
  name "gazebo"
  provides ["position2d:0"]

  # This name must match the name of a model in the "default" world
  model_name "pioneer2dx"

)

I've just installed the latest svn version of player (3.1) and I'm still having the same error. I'm thinking maybe both aren't compatible somehow. Does anybody have player/gazebo-4.0 actually working?