Hi, Did you define gz_aio_alloc in your *.cpp file as well as your *.h file? This can happen if you put the reference in the header but do not define the symbol.
Nate On Nov 13, 2007, at 6:09 AM, Sawyer Larkin wrote: > Hello, > I am trying to add Players AIO interface to Gazebo-0.7.0 I am very > close, but > am getting undefined references in plugin models that are going to > use the > interface. Statically linked models are working. > > Here is a summary of what i have done so far. > > I have added the class definition to libgazebo/gazebo.hh > I have added a libgazebo/gz_aio.cc file. > I have modified libgazebo/Makefile.am to compile the interface into > libgazebo. > > I have also added a preliminary gui panel to the wx sections. > > I have added an AIO interface to the pioneer2at model to test static > models, > the server starts and I am able to see the aio control panel. =) > > When I try to start the server using a plugin model, the server is > getting as > far as loading the plugin file. This is the output (I do not know > why it is > reporting ** Gazebo 0.9.0 ** it is definitely a modified 0.7.0 > download): > > /usr/local/lib/python2.5/site-packages/wxgazebo/aio.py:10: > DeprecationWarning: > The wxPython compatibility package is no longer automatically > generated or > actively maintained. Please switch to the wx package as soon as > possible. > from wxPython.wx import * > starting server > waiting for server > ** Gazebo 0.9.0 ** > * Part of the Player/Stage Project [http:// > playerstage.sourceforge.net]. > * Copyright 2000-2005 Brian Gerkey, Richard Vaughan, Andrew Howard, > * Nate Koenig and contributors. > * Released under the GNU General Public License. > using display [:0] > rendering: [GLXP pbuffer] direct [yes] RGBA [8 8 8 0] depth [24] > loading /home/tobor/chorus_player/src/gazebo/./CChorusModel.so... > error : error loading > plugin: /home/tobor/chorus_player/src/gazebo/./CChorusModel.so: > undefined > symbol: gz_aio_alloc > loading /usr/local/lib/gazebo/plugins/CChorusModel.so... > error : error loading plugin: /usr/local/lib/gazebo/plugins/ > CChorusModel.so: > cannot open shared object file: No such file or directory > Initialization failed > server died > stopping server > > As you can see there is an "undefined symbol: gz_aio_alloc" > > Here is the Makefile I am currently using to build the plugin model. > Note that > I am able to use the original interfaces built into the server just > fine. I'm > guessing I'm missing 1 small detail and I'm hoping someone can point > it out. > I will post a patch to add aio support for everyone to use once I > get this > resolved. > > Makefile: > all: CChorusModel.so > > %.o: %.cpp %.h > $(CXX) -Wall -g3 `pkg-config --cflags gazebo` -c $< > > %.so: %.o > $(CXX) -shared -nostartfiles -o $@ $< > > clean: > rm -f *.o *.so > > Thank you very much. > > Sawyer > > PS. Thanks for a wonderful project, I have been successfully > modeling custom > robots for personal, university, and now commercial R&D projects for > years. > The Player-Gazebo combination ROCKS! > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a > browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > Playerstage-gazebo mailing list > Playerstage-gazebo@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Playerstage-gazebo mailing list Playerstage-gazebo@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo
