[Qgis-user] [extern] Re: Problem with Python/Qgis

Tue Dec 12 22:56:38 PST 2023

Hi Gael,

this is not a QGIS problem, but one of your installed plugins is causing the issue. The first line mentions it already
> Couldn't load plugin 'crayfish'

I don't know the plugin, but you could try to delete / uninstall it and reinstall it again. If you go in a terminal to /home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins and delete the 'crayfish' folder, QGIS should start without the error.

Further down the line the vrtbuilder plugin is mentioned as well, you might want to delete and reinstall it as well, just to be sure if the crayfish plugin is a dependency of the vrtbuilder plugin.

HTH
Frank

________________________________
Von: QGIS-User <qgis-user-bounces at lists.osgeo.org> im Auftrag von Gael Kermarrec via QGIS-User <qgis-user at lists.osgeo.org>
Gesendet: Mittwoch, 13. Dezember 2023 01:52
An: chris hermansen <clhermansen at gmail.com>
Cc: qgis-user at lists.osgeo.org <qgis-user at lists.osgeo.org>
Betreff: Re: [Qgis-user] [extern] Re: Problem with Python/Qgis

thanks chris for your help. I tried your suggestion, I was able to install Qgis but interestingly as I launched it I got immediatly the error message

Couldn't load plugin 'crayfish' due to an error when calling its initGui() method AttributeError: module 'pyqtgraph' has no attribute 'GraphicsWindow' Traceback (most recent call last): File "/usr/lib/python3/dist-packages/qgis/utils.py", line 448, in startPlugin plugins[packageName].initGui() File "/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/crayfish/plugin.py", line 96, in initGui w = CrayfishPlotWidget(self.plot_dock_widget) File "/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/crayfish/gui/plot_widget.py", line 186, in __init__ self.gw = pyqtgraph.GraphicsWindow() AttributeError: module 'pyqtgraph' has no attribute 'GraphicsWindow' Python version: 3.8.10 (default, Nov 22 2023, 10:22:35) [GCC 9.4.0] QGIS version: 3.26.3-Buenos Aires Buenos Aires, 65e4edfdad Python Path: /usr/share/qgis/python /home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python /home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins /usr/share/qgis/python/plugins /usr/lib/python38.zip /usr/lib/python3.8 /usr/lib/python3.8/lib-dynload /usr/local/lib/python3.8/dist-packages /usr/lib/python3/dist-packages /home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python /home/kermarrec/.local/share/gis4wrf/python38/local/lib/python3.8/site-packages /home/kermarrec/.local/share/gis4wrf/python38/lib/python3/site-packages /home/kermarrec/.local/share/gis4wrf/python38/lib/python3.8/site-packages . /home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/vrtbuilderplugin /home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/vrtbuilderplugin/vrtbuilder

I have no idea what I could do to solve the problem.

gael.

On 12/12/23 18:36, chris hermansen wrote:
Gael and list,

On Tue, Dec 12, 2023 at 8:03 AM Gael Kermarrec via QGIS-User <qgis-user at lists.osgeo.org<mailto:qgis-user at lists.osgeo.org>> wrote:
Dear members,

I am trying to install Qgis from Ubuntu 20.04 but everytime I make sudo
apt install qgis qgis-plugin-grass I become the following:

The following packages contain unsatisfied dependencies:
qgis: Depends on python3-qgis (= 1:3.22.16+32focal) but
1:3.26.3+32focal-ubuntugis needs to be installed
Depends on qgis-providers (= 1:3.22.16+32focal) but
1:3.26.3+32focal-ubuntugis needs to be installed
Depends on qgis-common (= 1:3.22.16+32focal) but
1:3.26.3+32focal-ubuntugis needs to be installed
qgis-plugin-grass: Depends on qgis-plugin-grass-common (=
1:3.22.16+32focal) but 1:3.26.3+32focal-ubuntugis needs to be installed
Depends on grass782
E: Unable to correct problems, defective packages are in "keep in the
current state" mode.

I have no idea what I should do to make it works. Maybe somebody had the
same problem, I would be grateful to get some support as I would like to
work with QGis.

It looks as though you might be trying to work with the ubuntugis PPA.  If that's so, maybe you should consider trying the suggested methodology on the QGIS site here:

https://www.qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu

If you just want to correct the unsatisfied dependencies, it's probably worth trying your command again with the "-f" option:

apt install -f qgis qgis-plugin-grass

In any event, I suggest you read this useful mini-tutorial on fixing unsatisfied dependencies.

https://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa
--
Chris Hermansen · clhermansen "at" gmail "dot" com

C'est ma façon de parler.

--
-------********---------
Dr. Gael Kermarrec
Institute for meteorology and climatology
Leibniz Universität Hannover
Herrenhäuser Str. 2
D-30419 Hannover
Tel: +49 511 762 2679
Email: kermarrec at meteo.uni-hannover.de<mailto:kermarrec at meteo.uni-hannover.de>
Web: www.meteo.uni-hannover.de<http://www.meteo.uni-hannover.de>
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