[GRASS-stats] multiple grass installations and spgrass6()

[Roger Bivand]

On Tue, 22 Jan 2013, S. Koukoulas (lists) wrote:

>
> On 01/21/2013 09:56 PM, Roger Bivand wrote:
>> The message is coming from GRASS, almost certainly from v.out.ogr, and
>> almost certainly because you have multiple versions of GDAL on your
>> system (or a GDAL component or plugin). I am not able to help with
>> GRASS 7 problems, it is an unstable development version. Can you
>> export the object to a vector file in GRASS itself, not inside R?
> yes (from R to grass is ok - I followed your example with meuse data
> just fine)
>> Does the same error occur?
> no
>> Does the error rather (or also, if GDAL is broken) occur on reading a
>> shapefile into R with readOGR()?
> no, readOGR() works fine (tried with shapefiles)
>> You'll have to separate the problems yourself until you find out which
>> software component is wrongly linked to GDAL - best to remove all
>> binary installs of GDAL which on Debian/Ubuntu are notorious for
>> causing trouble, and install GDAL from source, then re-install GRASS
>> from source, and rgdal from source.
>>
>> See also:
>>
>> http://lists.osgeo.org/pipermail/grass-user/2009-July/051737.html
>>
>> http://lists.osgeo.org/pipermail/grass-stats/2009-January/000897.html
>>
>> at the ends of the threads. In both cases the GDAL/OGR GRASS plugins
>> were the culprits, often caused by binary installs of GDAL.
>>
> ok many thanks - I think that I understand the problem now (but I will
> not do anything about it for the moment, as I want to be able to work
> with grass6.4.3 as well).
>
> I can import my spatial data to R one way or another, I was just hoping
> that there would be a way for the grass package to recognise the right
> versions without making redundant one version in favor of another.
> best wishes,

It isn't R, it is GDAL which cannot manage different GRASS versions in the 
plugin - it has to point to the same one, I think.

Roger

> sotiris
>>  Roger
>>
>>
>> On Mon, 21 Jan 2013, S. Koukoulas (lists) wrote:
>>
>>> How can I get around a possible error with multiple grass installations,
>>> when I use spgrass6?
>>> (preferably without uninstalling grass!)
>>>
>>> Here a description of the problem:
>>> when I try to import data  into R (running R within GRASS 7 (revision
>>> 54609) environment), I get the following error:
>>>
>>>> nomoi=readVECT6("nomoi_okxe")
>>> Loading required package: rgdal
>>> rgdal: version: 0.8-4, (SVN revision Unversioned directory)
>>> Geospatial Data Abstraction Library extensions to R successfully loaded
>>> Loaded GDAL runtime: GDAL 1.9.2, released 2012/10/08
>>> Path to GDAL shared files: /usr/share/gdal
>>> Loaded PROJ.4 runtime: Rel. 4.8.0, 6 March 2012, [PJ_VERSION: 480]
>>> Path to PROJ.4 shared files: (autodetected)
>>> ERROR: Incompatible library version for module. You need to rebuild
>>> GRASS   <--------------------ERROR--------------
>>>       or untangle multiple installations.
>>>
>>> and then R crashes and I am out of its environment.
>>>
>>> "nomoi_okxe" data can be downloaded from
>>> http://geodata.gov.gr/geodata/index.php?option=com_sobi2&sobi2Task=sobi2Details&catid=16&sobi2Id=21&Itemid=
>>>
>>>
>>> and then choose SHP (EPSG:2100)
>>>
>>> In my PC I have grass6.4.3svn and grass 7 svn (revision  54609) on an
>>> OpenSuse 12.2 laptop
>>>
>>> My sessionInfo() output:
>>>> sessionInfo()
>>> R version 2.15.2 (2012-10-26)
>>> Platform: i586-suse-linux-gnu (32-bit)
>>>
>>> locale:
>>> [1] C
>>>
>>> attached base packages:
>>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>>
>>> other attached packages:
>>> [1] spgrass6_0.7-14 XML_3.95-0.1    sp_1.0-5
>>>
>>> loaded via a namespace (and not attached):
>>> [1] Matrix_1.0-9    grid_2.15.2     lattice_0.20-10 mgcv_1.7-22
>>> [5] nlme_3.1-105
>>>>
>>>
>>>> execGRASS("g.version")
>>> GRASS 7.0.svn (2012)
>>>
>>> I have installed spgrass6 using  install.packages("spgrass6",
>>> repos="http://R-Forge.R-project.org")
>>>
>>> many thanks,
>>> sotiris
>>>
>>>
>>> _______________________________________________
>>> grass-stats mailing list
>>> grass-stats at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/grass-stats
>>>
>>
>
>

-- 
Roger Bivand
Department of Economics, NHH Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no