[GRASS-dev] error creating a GRASS location

GRASS GRASS developer
,
1

Hi all.
Just finished a workshop (21 people!) on qgis+grass at the sasig in
Evora[0]. Went very well, all from a USB pen [1, 2]; people looked
enthusiastic.
We just had a couple of problems (which, given the range of tasks I have
been trying, is quite good to me):
- a space in the path prevented r.contour from running successfully
- the creation of a location, taking the extent from a loaded map, crashed
systematically qgis with:

Warning: QMetaObject::connectSlotsByName: No matching signal for
on_btnHelp_clicked()
terminate called after throwing an instance of 'QgsGrass::Exception'
what(): region for current mapset is not set
run "g.region"
Aborted

Unfortunately I cannot investigate much, as the user has left, and I cannot
replicate it on my machine, so I'll not open a bug, I mention here just for
the record, and in case it helps understanding a potential weakness.
All the best.
--
http://faunalia.it/pc

[0] http://evora.sigaberto.org
[1] http://evora.sigaberto.org/downloads/sasig2009_final.img.tar.gz
[2] http://www.faunalia.pt/usbgis

2

On Wed, Nov 4, 2009 at 5:24 PM, Paolo Cavallini <cavallini@faunalia.it> wrote:

Hi all.
Just finished a workshop (21 people!) on qgis+grass at the sasig in
Evora[0]. Went very well, all from a USB pen [1, 2]; people looked
enthusiastic.
We just had a couple of problems (which, given the range of tasks I have
been trying, is quite good to me):
- a space in the path prevented r.contour from running successfully

... I have tried that on Linux with 6.4.0svn (current), no problem.
Which OS did you use there? The Ubuntu 9.04 GNU/Linux on the stick?

- the creation of a location, taking the extent from a loaded map, crashed
systematically qgis with:

Warning: QMetaObject::connectSlotsByName: No matching signal for
on_btnHelp_clicked()
terminate called after throwing an instance of 'QgsGrass::Exception'
what(): region for current mapset is not set
run "g.region"
Aborted

I see the same error here:
http://forum.qgis.org/viewtopic.php?f=2&t=5019#p8664
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=549120

https://trac.osgeo.org/qgis/ticket/1964
-> set by pcav to invalid :slight_smile:

Perhaps GRASS is crashing only subsequently?

Unfortunately I cannot investigate much, as the user has left, and I cannot
replicate it on my machine, so I'll not open a bug, I mention here just for
the record, and in case it helps understanding a potential weakness.

Is this right:
- which GRASS version: GRASS 6.4Rc5?
- which operating system: Ubuntu 9.04 GNU/Linux?

Or did the user bring his own machine?

Markus

3

On Wed, 4 Nov 2009 20:56:54 +0100, Markus Neteler <neteler@osgeo.org>
wrote:

On Wed, Nov 4, 2009 at 5:24 PM, Paolo Cavallini <cavallini@faunalia.it>
wrote:

- a space in the path prevented r.contour from running successfully

... I have tried that on Linux with 6.4.0svn (current), no problem.
Which OS did you use there? The Ubuntu 9.04 GNU/Linux on the stick?

the stick, with qgis 1.4 self compiled 10 days ago.

Warning: QMetaObject::connectSlotsByName: No matching signal for
on_btnHelp_clicked()
terminate called after throwing an instance of 'QgsGrass::Exception'
what(): region for current mapset is not set
run "g.region"
Aborted

I see the same error here:
http://forum.qgis.org/viewtopic.php?f=2&t=5019#p8664
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=549120

https://trac.osgeo.org/qgis/ticket/1964
-> set by pcav to invalid :slight_smile:

Perhaps GRASS is crashing only subsequently?

The error seems different to me:
what(): Incompatible library version for module. You need to rebuild GRASS
or untangle multiple installations.

Is this right:
- which GRASS version: GRASS 6.4Rc5?

yes

- which operating system: Ubuntu 9.04 GNU/Linux?

yes, as above.

Thanks.
--
http://faunalia.it/pc