On Tue, 5 May 2020, Helmut Kudrnovsky wrote:
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?
Exactly, because RStudio uses multiple layers of processes, often the
processes do not inherit environments properly. Do use Rgui on Windows,
not Rstudio. If the error repeats with Rgui, then we know more.
How was GRASS installed, via OSGeo4W or winGRASS?
Roger
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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Roger Bivand
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