[R-sig-Geo] rgrass7 : Error in parseGRASS

[Michael DELORME]

Thanks for investigating.

I'll try a standalone version of GRASS if needed.

Here is the traceback

> traceback()
4: stop(paste(cmd, "not parsed"))
3: parseGRASS(cmd, legacyExec = legacyExec)
2: doGRASS(cmd, flags = flags, ..., parameters = parameters, echoCmd =
echoCmd, legacyExec = legacyExec)
1: execGRASS("v.db.addcolumn", map = "meuse", columns = "area_m2 double
precision")

My C:\OSGeo4W64\apps\grass\grass-7.0.5\bin lists *.exe or *.bat and
indeed the *.bat command are those which don't work (r.mask.bat,
v.db.addcolumn.bat,...). The batch calls Python scripts ; for example
v.db.addcolumn.bat is :

@"%GRASS_PYTHON%" "%GISBASE%/scripts/v.db.addcolumn.py" %*

So I guess something must be wrong in my Python installation... (it
works however from within a GRASS shell)

Cordially


Le 22/11/2016 14:30, Roger Bivand a écrit :
> On Tue, 22 Nov 2016, Michael DELORME wrote:
>
>> Thanks for replying
>>
>> Here is a reproducible example (change your GRASS directory of course) :
>>
>> library(rgrass7)
>> library(sp)
>> initGRASS("C:/OSGeo4W64/apps/grass/grass-7.0.5", home = tempdir(),
>> override = TRUE)
>> data(meuse)
>> coordinates(meuse) <- ~x+y
>> writeVECT(meuse, "meuse")
>> execGRASS("v.db.addcolumn", map = "meuse", columns = "area_m2 double
>> precision")
>
> This appears to run correctly on Windows 7 with GRASS 7.0.5 Windows
> stand-alone. Do you need to use OSGeo4W - the internal logic used for
> finding out where the different versions keep their executables and
> batch files varies?
>
> What does traceback() say after the error? The error comes from
> parseGRASS("v.db.addcolumn") - the XML error comes from not being able
> to read the output of v.db.addcolumn<.ext> --interface-description
> where <.ext> may be .exe or .bat I think.
>
> Roger
>
>>
>> I get :
>> Error : XML content does not seem to be XML: 'The specified path was not
>> found.'
>> In addition: Warning message:
>> running command 'v.db.addcolumn.bat --interface-description' had
>> status 1
>> Error in parseGRASS(cmd, legacyExec = legacyExec) :
>>  v.db.addcolumn not parsed
>>
>> Other execGRASS commands (like r.neighbors, r.mapcalc,..)  work fine,
>> but some other (r.mask) fail with a similar XML error.
>>
>> All commands work fine when used from the GRASS shell...
>>
>> What is this XML error ?
>> Thanks
>>
>> Le 22/11/2016 09:34, Roger Bivand a écrit :
>>> On Tue, 22 Nov 2016, Michael DELORME wrote:
>>>
>>>> Dear list,
>>>>
>>>> Using rgrass7 on Windows7 with GRASS 7.0.5 (OSGeo distribution), I get
>>>> the following error :
>>>
>>> Please always try to provide a reproducible example using a standard
>>> data set. In addition, the output of traceback() following the error
>>> would be helpful. Are you running R inside GRASS, or using R to
>>> initiate GRASS?
>>>
>>> Consider using the grass-stats list:
>>>
>>> https://lists.osgeo.org/mailman/listinfo/grass-stats
>>>
>>> as it is more likely to yield results, but there also provide an
>>> example that anyone can reproduce. The example should avoid loading
>>> other packages, and should be run from the R console (not, say,
>>> RStudio).
>>>
>>> Roger
>>>
>>>
>>>
>>>>
>>>>> execGRASS("v.db.addcolumn", map = "result_v", columns = "area_m2
>>>>> double precision")
>>>> Error : XML content does not seem to be XML: 'Le chemin d'accés
>>>> spécifié est introuvable.' In addition: Warning message: running
>>>> command 'v.db.addcolumn.bat --interface-description' had status 1
>>>> Error in parseGRASS(cmd, legacyExec = legacyExec) :
>>>>  v.db.addcolumn not parsed
>>>>
>>>>
>>>> and a similar one for r.mask :
>>>>
>>>>> execGRASS("r.mask", raster = "map")
>>>> Error : XML content does not seem to be XML: 'Le chemin d'accés
>>>> spécifié est introuvable.'
>>>> In addition: Warning message:
>>>> running command 'r.mask.bat --interface-description' had status 1
>>>> Error in parseGRASS(cmd, legacyExec = legacyExec) : r.mask not parsed
>>>>
>>>>
>>>> whereas most other execGRASS command I tried work as expected.
>>>> Any idea ?
>>>> Thanks in advance
>>>>
>>>> Here is my session info :
>>>>
>>>>> sessionInfo()
>>>> R version 3.3.1 (2016-06-21)
>>>> Platform: x86_64-w64-mingw32/x64 (64-bit)
>>>> Running under: Windows 7 x64 (build 7601) Service Pack 1
>>>>
>>>> locale:
>>>> [1] LC_COLLATE=French_France.1252  LC_CTYPE=French_France.1252
>>>> LC_MONETARY=French_France.1252 LC_NUMERIC=C [5]
>>>> LC_TIME=French_France.1252
>>>> attached base packages:
>>>> [1] parallel  stats     graphics  grDevices utils     datasets
>>>> methods   base
>>>> other attached packages: [1] rgrass7_0.1-9 XML_3.98-1.4 beepr_1.2
>>>> raster_2.5-8 sp_1.2-3 RPostgreSQL_0.4-1 DBI_0.5-1
>>>>
>>>> loaded via a namespace (and not attached): [1] magrittr_1.5
>>>> tools_3.3.1 audio_0.1-5 Rcpp_0.12.7 stringi_1.1.2 grid_3.3.1
>>>> stringr_1.1.0 lattice_0.20-34 [9] fortunes_1.5-3
>>>>
>>>>
>>>>
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>>>>
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>>>
>>
>> -- 
>> *Michaël DELORME*
>> Administrateur de données, chargé de projet en géomatique
>> Service régional de l'information statistique, économique et
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>>
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