[Qgis-developer] help for a cpp newbie

Marco Hugentobler marco.hugentobler at sourcepole.ch
Wed Jun 27 00:07:51 PDT 2012

Hi Denis

Could it be your qgis executable does not use the libqgis_core.so you 
compiled? If so, you may set the LD_LIBRARY_PATH to point to the 
location of your qgis libs.


Am 27.06.2012 08:45, schrieb Denis Rouzaud:
> Hi all,
> I am (almost) a complete newbie in c++. I am trying to get into it, by 
> adding a new edit type for vector layers. I am adding something 
> similar to valuerelation to have multi-attribute edit type (using a 
> join table and an attribute table).
> Basically, I reused almost exactly the same code as valuerelation, at 
> first. It won't give anything working, but it allows me to learn.
> I can compile, but when I run qgis, I have this python error at launch:
> ImportError: /home/denis/opt/builds2/share/qgis/python/qgis/core.so: 
> undefined symbol: _ZN10QgsProject21setTopologicalEditingEb
> Then, when I opened the layer properties dialog and I try to change 
> the edit type, QGIS crashes and I have the following output in the 
> terminal:
> symbol lookup error: /home/denis/opt/builds2/bin/qgis: undefined 
> symbol: _ZN14QgsVectorLayer14multiAttributeEi
> I found a similar error on the list 
> http://lists.osgeo.org/pipermail/qgis-developer/2012-May/020401.html, 
> but uninstalling and deleting the share directory did nothing.
> Does someone has any idea on what could be going wrong?
> Thanks
> Denis
> _______________________________________________
> Qgis-developer mailing list
> Qgis-developer at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-developer

Dr. Marco Hugentobler
Sourcepole -  Linux & Open Source Solutions
Weberstrasse 5, CH-8004 Zürich, Switzerland
marco.hugentobler at sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20120627/eebadbbd/attachment.html>

More information about the Qgis-developer mailing list