Did you start GRASS session before executing i.cluster? GRASS modules
should not be run outside of GRASS working session (see Wiki how to
set up necessary environmental variables to run modules outside of
working session).
Maris.
PS. This should better be posted in -user ML.
2014-10-30 23:59 GMT+02:00 Artur Bercik <vbubbly21@gmail.com>:
Dear GRASS-GIS developers:
I wanted to use GRASS-GIS through command line access in my Windows PC.
So, I have installed GRASS GIS 7.0.0beta3 in drive C of my PC.
But, when I enter the following command in the windows command prompt: