[Qgis-user] suddenly unable to open shape files

Mon Nov 28 03:30:02 PST 2016

Hi Andreas

The harddisk was not full; about of 200 GB free space. If the whole 
system was healthy before I cannot say for sure. Everything used to work 
until suddenly I had problems with shapes and Grass files. Anyway, now 
it works again.

Thanks for your suggestions,

Mira

On 28/11/16 11:26, Neumann, Andreas wrote:
>
> 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
>>>>
>>>> _______________________________________________
>>>> Qgis-user mailing list
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>>>>
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>>>> To start a new topic under Quantum GIS - User, email [hidden email] 
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>>>
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>>> files 
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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
>>
>> _______________________________________________
>> Qgis-user mailing list
>> Qgis-user at lists.osgeo.org <mailto:Qgis-user at lists.osgeo.org>
>> List info: http://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
>