[Qgis-developer] "Couldn't load PyQGIS" after downgrading PyQt4

Germán Carrillo carrillo.german at gmail.com
Wed May 16 07:09:53 PDT 2012

Hi devs,

does anyone know why I'm getting a "Couldn't load PyQGIS" error when
starting QGIS? I'm working with QGIS 1.8.0-Lisboa, a1255fc, Python 2.7.2.

I've just downgraded PyQt4 from 4.8.5 to 4.8.3 on Ubuntu Oneiric. I had to
remove qgis-python before downgrading but I already installed it again. The
error message is:


Traceback (most recent call last):
  File "", line 1, in
RuntimeError: the PyQt4.QtCore module is version -1 but the qgis.core
module requires version 1

The strange thing is that I'm able to load PyQt4.QtCore from a Python




Soluciones Geoinformáticas Libres
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