[GRASS-dev] Error reading null row 8 for <MASK>

[Markus Neteler]

On Mon, May 4, 2015 at 8:05 PM, Alba German <albagerman at gmail.com> wrote:
> Hello!
> I am running a loop with several r.mapcalc. I am using GRASS 7.1. The
> function stops with an error:
>
> ERROR: Error reading null row 8 for <MASK>
>
> I've noticed that Paulo van Breugel, had the same error but I didn't see the
> solution to it. Obviously it has something to do with the raster called
> MASK, created with r.mask before running the loop of multiple r.mapcalc.
> The code itself has no problem and is very simple and works just fine with
> the same list of images, but without running r.mask first.

Hi Alba,

could you post that part of the code e.g. here
http://pastebin.com/

? It sounds like a race condition...

Markus