[GRASS-stats] error when trying to start GRASS from Rstudio in Windows

[Veronica Andreo]

Hi

I taught a GRASS course last week and all students got the same error when
trying to init GRASS from R or Rstudio (in all cases grass was installed
through OSGeo4W installer).

Here´s the command we used (paths must be adapted accordingly):

initGRASS(gisBase = "C:/OSGeo4W64/apps/grass/grass-7.4.2RC2",
          gisDbase = "C:/Users/RETA/Documents/grassdata",
          location = "nc_spm_08_grass7",
          mapset = "user1",
          SG = "elevation")

The pop-up error is a missing iconv.dll. See screenshot attached. I believe
all locales were in Spanish as well as the laptop I am testing now. After
many attempts to try to close the pop-up error, we got the following in the
Rstudio console:

Error in if (!compatible) { : argument is of length zeroIn addition:
Warning messages:1: In system(paste("g.dirseps.exe -g",
shQuote(Sys.getenv("GISRC"))),  :  running command 'g.dirseps.exe -g
"junk"' had status 3092: In system(paste("g.dirseps.exe -g",
shQuote(gisDbase)), intern = TRUE) :  running command 'g.dirseps.exe
-g "C:/Users/RETA/Documents/grassdata"' had status 3093: In
dir.create(loc_path) :  cannot create dir 'NA\nc_spm_08_grass7',
reason 'No such file or directory'4: In dir.create(paste(loc_path,
"PERMANENT", sep = "/")) :  cannot create dir
'NA\nc_spm_08_grass7\PERMANENT', reason 'No such file or directory'5:
In dir.create(paste(loc_path, mapset, sep = "/")) :  cannot create dir
'NA\nc_spm_08_grass7\user1', reason 'No such file or directory'6: In
system(paste("g.version", get("addEXE", envir = .GRASS_CACHE),  :
running command 'g.version.exe' had status 309

Is this grass or windows problem? I did not get this error in this same
laptop a month ago when Roger fixed some other problems. Seems that
something changed meanwhile.

Cheers,
Vero
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