Helmut Kudrnovsky

>This is my DEM file https://github.com/wjcper2008/FileN/releases/download/1.0/DEM.zip tested here with this DEM: ``` r.external input=D:\wd\testrwatershd\DEM.tif output=DEM Reading band 1 of 1... Link to raster map created. ``` ``` g.region -p -a...

``` g.region raster=DEM@PERMANENT g.gisenv set='DEBUG=3' r.watershed --o -abs elevation=DEM@PERMANENT hbasin=slu_r thresh=1169 ``` please run it in DEBUG=3 mode again, but without the quiet flag --q please post then the whole...

`-m ` flag is worth to be tested @wjcper2008 when you're starting winGRASS, then please type `echo %PATH%` and `echo %GISBASE%` into the black GRASS GIS windows console and post...

here: ``` C:\OSGEO4~1\apps\grass\grass79\lib; C:\OSGEO4~1\apps\grass\grass79\bin; C:\Users\youruser\AppData\Roaming\GRASS7\addons\bin; C:\OSGEO4~1\apps\Python37; C:\OSGEO4~1\apps\Python37\Scripts;{app}; C:\OSGEO4~1\apps\Python27\Scripts; C:\OSGEO4~1\bin; C:\WINDOWS\system32; C:\WINDOWS; C:\WINDOWS\system32\WBem; C:\OSGEO4~1\apps\msys\bin; C:\Program Files\R\R-4.0.3\bin\x64; C:\OSGEO4~1\apps\Python37\lib\site-packages\pywin32_system32 ``` have you modified %PATH% ?

are any other r*.modules working for you? e.g. - r.slope.aspect - r.stream.extract - r.topidx - r.param.scale - r.flow

I confirm this issue with the Data set mentioned above on a win 10 Enterprise Box and the -s option. It works without -s. IIRC, there may be a related...

>Things which need to happen to rename location to mapset. Is it that way?

>Developers and users need to be informed of this before it is done in order to plan accordingly. Good point.

> Also, is this compressed OSGeo4W64 folder recognized by the OSGeo4W64 installer when later one tries to upgrade this installation? see [PackagingInstructions](https://trac.osgeo.org/osgeo4w/wiki/PackagingInstructions) how OSGeo4W packages should be packaged. Especially: ```...

and see https://github.com/landam/wingrass-maintenance-scripts for Martin's script to automatically build the OSGeo4W packages.