[Qgis-user] suddenly unable to open shape files

Mon Nov 28 02:26:49 PST 2016

Hi Mira, 

It is highly unlikely that any data can corrupt/modify QGIS as a
software. It could crash it, but it can't modify binaries/libraries of
QGIS. 

Not knowing about your situation - are you sure that your whole system
was in a healthy state? Perhaps one harddisk or partition was full? That
could explain such a behaviour. 

Andreas 

On 2016-11-28 10:10, Mira Kattwinkel wrote:

> Dear all,
> 
> maybe that's of interest for someone else: I solved the problem by completely removing QGIS and all its configuration files (using 'synaptic' on Linux and some manually) and reinstalling it.
> I guess the problem emerged from a very large Grass mapset (about 2000 raster and vector files). Could it be that this messed up something internally that it even affected shape files outside of this folder?
> 
> Cheers,
> Mira
> 
> On 25/11/16 18:17, Nicolas Cadieux wrote: Zip me the file if it's not confidential.  I can test it.
> 
> Le 25 nov. 2016 à 12:07, Mira Kattwinkel [via OSGeo.org <http://OSGeo.org>] <[hidden email] </user/SendEmail.jtp?type=node&node=5297452&i=0>> a écrit :
> 
> Hello Nicola
> 
> Thanks for the suggestion but this is not the problem. I did not move
> any files and it happens with whatever shape file I try.
> 
> Mira
> 
> On 25/11/16 17:58, Nicolas Cadieux wrote:
> 
> Hi,
> 
> Perhaps you moved or copied the shape files and forgot to move the
> accompanied files (3 to 8 files with different extensions like .shx
> .dbf .shp .prj)?  If you just move the .shp and not the others, this
> is will create errors.  The .shx contains the geometries.  You may get
> this kind of message if you try to drag and drop the .shx and not the
> .shp in QGiS.
> 
> .tiff will not crash because it's a lone file.
> 
> Nicolas
> 
> Le 25 nov. 2016 à 11:36, Mira Kattwinkel [via OSGeo.org <http://OSGeo.org>
> <http://OSGeo.org>] <[hidden email]
> </user/SendEmail.jtp?type=node&node=5297448&i=0>> a écrit :
> 
> Dear list
> 
> I have been working with QGIS 2.14 and now 2.18 for a while on Linux
> Mint 17. Suddenly, I cannot open shape files any more. When trying to
> load them I get the message: "Layer is not valid: The layer XX.shp is
> not a valid layer and can not be added to the map."  In the log message
> panel under ogr it says: "Data source is invalid (Unable to open XX.shx
> or XX.SHX.Try --config SHAPE_RESTORE_SHX true to restore or create it)"
> 
> Additionally, I cannot open GRASS files any more (which also used to
> work fine) and get the error:" Error reading database file from:
> /usr/share/qgis/resources/srs.db Because of this the projection selector
> will not work..." and then QGIS crashes.
> 
> Interestingly, I can open shape files from my file browser (it starts
> QGIS and loads the file) but then I cannot add another one. Raster
> (GeoTif) data are also fine.
> 
> I have no idea what's causing this. I have tried removing and
> reinstalling QGIS (version 2.18 and 2.14) without any success.
> 
> Can anybody give me any hint what might have corrupted my system?
> 
> Thanks a lot,
> Mira
> 
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 -- Dr. Mira Kattwinkel
Quantitative Landscape Ecology
Institute for Environmental Sciences
University of Koblenz-Landau
Fortstraße 7
76829 Landau
Germany
Phone: + 49 6341 280-31553
Office: Building I, Room 2.02

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-- 
Dr. Mira Kattwinkel
Quantitative Landscape Ecology
Institute for Environmental Sciences
University of Koblenz-Landau
Fortstraße 7
76829 Landau
Germany
Phone: + 49 6341 280-31553
Office: Building I, Room 2.02

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