[GRASSLIST:783] r.walk warning

[giglio.antonio at katamail.com]

Hi, i tried to use r.walk, but had this warning:

GRASS 6.1.cvs (elevation):~ > r.walk elevation=batti_fillnulls friction=matrice_di_1 output=risultato_r_walk2 coordinate=81.0002778,7.21666667 lambda=1
WARNING: segment_pagein: No such file or directory
WARNING: segment_pagein: No such file or directory
WARNING: segment_pagein: No such file or directory


What does it mean?
Thank you,
Antonio.

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