[GRASS-stats] Package rgrass7 - g.extension function

[Helmut Kudrnovsky]

romain Fer. wrote
> Hello,
> 
> I am a french student in master's degrees, in advence I'm sorry for my
> english.
> 
> I using the package rgrass7 with R during my internship and I have a error
> on one function of this package. I use g.extension to import r.clip. I
> explain this error on this forum :
> https://gis.stackexchange.com/questions/360310/install-grass-extension-with-g-extension-and-rstudio
> 
> Can you look my explications of this problem and do you give me your
> opinion on this error ?
> 
> Thanks you in advance for your help,

there are maybe several issues here:

>initGRASS("C:/Program Files/GRASS GIS 7.6"

is it possible to upgrade to the 7.8.x-line?

>    libgis_revison = grass.version()['libgis_revision']
>KeyError: 'libgis_revision'

AFAIR there have been some issues with libgis_revision in earlier versions;
this should be addressed in 7.8.x-line.

>ATTENTION: GRASS_ADDON_BASE is not defined

this variable should be defined that the addon is installed in the correst
place.

when you use winGRASS out of RStudio, are there all needed variables
defined?

see 

https://github.com/OSGeo/grass/blob/master/mswindows/env.bat 

for hints which variables should be defined in minimum that standalone
winGRASS is working.

%GISBASE% is the installation path to standalone winGRASS.




-----
best regards
Helmut
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