Anna,
Thank you. I did finally figure out how to get a command line window,
and I entered the command you said, precisely.
This error message resulted:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\OSGeo4W\bin>g.extension ext=r.viewshed
which: svn: unknown command
GRASS_INFO_ERROR(5192,1): svn client required. Please install Subversion
first.
GRASS_INFO_END(5192,1)
I protest -- I have installed Subversion! Is there a way to work
around this? Thank you.
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