[Qgis-user] Need help running GRASS r.watershed function inside Sextante QGIS

[Al Tongco]

Hi,
 
I've got problem running r.watershed in Sextante QGIS.
 
Here are the first few lines of error Log tab --
 
 
 
Algorithm r.watershed - Watershed basin analysis program. started 
g.proj -c proj4="+proj=utm +zone=12 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs"
r.external input="C:\AL\Logan_Q_Grass\logan.tif" band=1 output=tmp1365434324742 --overwrite -o
g.region n=4662392.44692 s=4612592.44692 e=461954.019091 w=432404.019091 res=30.0
r.watershed elevation=tmp1365434324742 threshold=0 max.slope.length=0 -4 accumulation=accumulationca9c4956a4b94c8badab7fa741c87ea2 drainage=drainageca9c4956a4b94c8badab7fa741c87ea2 basin=basinca9c4956a4b94c8badab7fa741c87ea2 stream=streamca9c4956a4b94c8badab7fa741c87ea2 half.basin=half.basinca9c4956a4b94c8badab7fa741c87ea2 visual=visualca9c4956a4b94c8badab7fa741c87ea2 length.slope=length.slopeca9c4956a4b94c8badab7fa741c87ea2 slope.steepness=slope.steepnessca9c4956a4b94c8badab7fa741c87ea2 --overwrite
g.region rast=accumulationca9c4956a4b94c8badab7fa741c87ea2
r.out.gdal -c createopt="TFW=YES,COMPRESS=LZW" input=accumulationca9c4956a4b94c8badab7fa741c87ea2 output="C:\Users\Al\AppData\Local\Temp\sextante\grassrwatershed7c3b96f7beb64a29a77a40a54ba4227d.tif"
g.region rast=drainageca9c4956a4b94c8badab7fa741c87ea2
r.out.gdal -c createopt="TFW=YES,COMPRESS=LZW" input=drainageca9c4956a4b94c8badab7fa741c87ea2 output="C:\Users\Al\AppData\Local\Temp\sextante\grassrwatershed1d00377ae36c4ebd9972ce538e4db3f9.tif"
 
 
 
Here are the last few lines in error Log tab---
 
C:\Program Files (x86)\Quantum GIS Lisboa>r.out.gdal -c createopt="TFW=YES,COMPRESS=LZW" input=slope.steepnessca9c4956a4b94c8badab7fa741c87ea2 output="C:\Users\Al\AppData\Local\Temp\sextante\grassrwatershed0122eb5a51574f398a3ed086429ceafd.tif"   
GRASS_INFO_ERROR(4568,1): Raster map or group not found  
GRASS_INFO_END(4568,1)   
C:\Program Files (x86)\Quantum GIS Lisboa>exit  
Converting outputs 
Loading resulting layers 
Algorithm r.watershed - Watershed basin analysis program. finished
 
 
GRASS commands settings in Sextante are set appropriately inside Sextante Options and Configurations.
 
Any help is appreciated.  Thanks.

Al Tongco 
36°07'26.46"N; 97°04'19.23"W

"The people who get on in this world are the people who get up and look for the circumstances they want and if they can't find them, make them." -- George Bernard Shaw, Nobel Laureate in Literature 1925 
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