rgrass7 : Error in parseGRASS

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 ?crit :

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 ?crit :

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'acc?s
sp?cifi? 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'acc?s
sp?cifi? 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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