I want to install r.clip GRASS extension with Rstudio and g.extension but I have error ERREUR : Variable 'LOCATION_NAME' non définie. My code is :

I want to use GRASS in Rstudio to crop my DEM with my GRASS region definited. I tried to install r.clipextension on GRASS with g.extension to realise this. But when I use the function g.extension to import r.clip in GRASS I have error ERREUR : Variable 'LOCATION_NAME' non définie. My code is :

I want to install r.clip Grass extension with Rstudio and g.extension but I have error ERREUR : Variable 'LOCATION_NAME' non définie. My code is :

When I check the manuel of the g.extension function, I saw that -s argument in flags can to be use but the system administrator rights are necessary. So I have given the right at my folder where Grass 7.6 is installed and I'm administrator of my computer.

I use Grass 7.6.1 installed in C:/Program Files/GRASS GIS 7.6 and R 3.6.1.

Thanks you in advence for your help !

I want to install r.clip GRASS extension with Rstudio and g.extension but I have error ERREUR : Variable 'LOCATION_NAME' non définie. My code is :

When I check the manuel of the g.extension function, I saw that -s argument in flags can to be use but the system administrator rights are necessary. So I have given the right at my folder where GRASS 7.6 is installed and I'm administrator of my computer.

I use GRASS 7.6.1 installed in C:/Program Files/GRASS GIS 7.6 and R 3.6.1.