[GRASSLIST:1558] GRASS 5.7: Vector networking tutorial

[Maliheh]

Hi,
I'm practicing on this tutorial, it's so good for me
to know more about GRASS 5.7.
but I have some problems with it:
1. In reachability of schools section:
 I did all till
  d.vect schools disp=attr attr=pointName
bgcolor=white bcolor=black
 but I get this error message:
  Cannot select attributes from cat 39.
Does anybody know what is this error and what should I
do?

Thank you so much

Maliheh

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