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I'm trying to use the r.watershed tool, here is the error that is arising. I've tried changing the GRASS path to custom /Applications/QGIS.app/Contents/Resources/grass78 and it doesn't seem to work either. Does someone know what might be wrong?

Screenshot1 Screenshot2

Here are the screenshots of the log panel: plugin processing general grass

QGIS version: 3.16.2-Hannover QGIS code revision: c6ac5a6052 Qt version: 5.14.2 GDAL version: 3.1.2 GEOS version: 3.8.1-CAPI-1.13.3 PROJ version: Rel. 6.3.2, May 1st, 2020 Processing algorithm… Algorithm 'r.watershed' starting… Input parameters: { '-4' : False, '-a' : False, '-b' : False, '-m' : False, '-s' : False, 'GRASS_RASTER_FORMAT_META' : '', 'GRASS_RASTER_FORMAT_OPT' : '', 'GRASS_REGION_CELLSIZE_PARAMETER' : 0, 'GRASS_REGION_PARAMETER' : None, 'accumulation' : 'TEMPORARY_OUTPUT', 'basin' : 'TEMPORARY_OUTPUT', 'blocking' : None, 'convergence' : 5, 'depression' : None, 'disturbed_land' : None, 'drainage' : 'TEMPORARY_OUTPUT', 'elevation' : '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/b7ea5fc72b014cb39e1d9b62fb1cca60/OUTPUT.tif', 'flow' : None, 'half_basin' : 'TEMPORARY_OUTPUT', 'length_slope' : 'TEMPORARY_OUTPUT', 'max_slope_length' : None, 'memory' : 300, 'slope_steepness' : 'TEMPORARY_OUTPUT', 'spi' : 'TEMPORARY_OUTPUT', 'stream' : 'TEMPORARY_OUTPUT', 'tci' : 'TEMPORARY_OUTPUT', 'threshold' : 10000 }

g.proj -c proj4="+proj=utm +zone=32 +datum=WGS84 +units=m +no_defs" r.in.gdal input="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/b7ea5fc72b014cb39e1d9b62fb1cca60/OUTPUT.tif" band=1 output="rast_5ffee631ef5947" --overwrite -o g.region n=5220505.94804144 s=4997005.94804144 e=761957.64997435 w=605957.64997435 res=100.0 r.watershed elevation=rast_5ffee631ef5947 threshold=10000 convergence=5 memory=300 accumulation=accumulationa7ae7bf7f2954266a3ed4260e3ef8e53 drainage=drainagea7ae7bf7f2954266a3ed4260e3ef8e53 basin=basina7ae7bf7f2954266a3ed4260e3ef8e53 stream=streama7ae7bf7f2954266a3ed4260e3ef8e53 half_basin=half_basina7ae7bf7f2954266a3ed4260e3ef8e53 length_slope=length_slopea7ae7bf7f2954266a3ed4260e3ef8e53 slope_steepness=slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53 tci=tcia7ae7bf7f2954266a3ed4260e3ef8e53 spi=spia7ae7bf7f2954266a3ed4260e3ef8e53 --overwrite g.region raster=accumulationa7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="accumulationa7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/2f1a07d3617e422f8ada83f1c31be861/accumulation.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=drainagea7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="drainagea7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/146e832478954e80910f965cfece799e/drainage.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=basina7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="basina7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/4114f2a8049e4999aa119afeedbf5fa8/basin.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=streama7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="streama7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/57b019cca54a4b4cb97b7dc7f932a7af/stream.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=half_basina7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="half_basina7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/188f626da9f94d3a90350688ea633db7/half_basin.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=length_slopea7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="length_slopea7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/2a6f0900f6424a4298179cf967b520b4/length_slope.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/73f4c1e80722461fba1087e6ad17e997/slope_steepness.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=tcia7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="tcia7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/74e539c6455d4ccd92f3baadd92dc31e/tci.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite g.region raster=spia7ae7bf7f2954266a3ed4260e3ef8e53 r.out.gdal -t -m input="spia7ae7bf7f2954266a3ed4260e3ef8e53" output="/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/9341f608a39248628203df1630046f77/spi.tif" format="GTiff" createopt="TFW=YES,COMPRESS=LZW" --overwrite Default locale settings are missing. GRASS running with C locale. Starting GRASS GIS... Cleaning up temporary files... Executing </private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/grassdata/grass_batch_job.sh> ... Default region was updated to the new projection, but if you have multiple mapsets g.region -d should be run in each to update the region from the default Projection information updated Over-riding projection check Importing raster map <rast_5ffee631ef5947>... 0..3..6..9..12..15..18..21..24..27..30..33..36..39..42..45..48..51..54..57..60..63..66..69..72..75..78..81..84..87..90..93..96..99..100 dyld: Library not loaded: @rpath/libgrass_raster.7.8.dylib Referenced from: /Applications/QGIS.app/Contents/Resources/grass78/etc/r.watershed/ram Reason: image not found WARNING: Subprocess failed with exit code 6 WARNING: category information for [accumulationa7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [tcia7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [spia7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [drainagea7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [basina7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [streama7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [half_basina7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [length_slopea7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid WARNING: category information for [slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53] in [PERMANENT] missing or invalid ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map <half_basina7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map or group <half_basina7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map <length_slopea7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map or group <length_slopea7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map <slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map or group <slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found Execution of </private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/grassdata/grass_batch_job.sh> finished. Cleaning up default sqlite database ... Cleaning up temporary files... Default locale settings are missing. GRASS running with C locale. Starting GRASS GIS... Cleaning up temporary files... Executing </private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/grassdata/grass_batch_job.sh> ... ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map <half_basina7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map or group <half_basina7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map <length_slopea7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map or group <length_slopea7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map <slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map or group <slope_steepnessa7ae7bf7f2954266a3ed4260e3ef8e53> not found ERROR: Raster map not found ERROR: Raster map or group not found ERROR: Raster map not found ERROR: Raster map or group not found Execution of </private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/grassdata/grass_batch_job.sh> finished. Cleaning up default sqlite database ... Cleaning up temporary files... Execution completed in 4.78 seconds Results: {'accumulation': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/2f1a07d3617e422f8ada83f1c31be861/accumulation.tif', 'basin': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/4114f2a8049e4999aa119afeedbf5fa8/basin.tif', 'drainage': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/146e832478954e80910f965cfece799e/drainage.tif', 'half_basin': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/188f626da9f94d3a90350688ea633db7/half_basin.tif', 'length_slope': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/2a6f0900f6424a4298179cf967b520b4/length_slope.tif', 'slope_steepness': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/73f4c1e80722461fba1087e6ad17e997/slope_steepness.tif', 'spi': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/9341f608a39248628203df1630046f77/spi.tif', 'stream': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/57b019cca54a4b4cb97b7dc7f932a7af/stream.tif', 'tci': '/private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/74e539c6455d4ccd92f3baadd92dc31e/tci.tif'}

Loading resulting layers The following layers were not correctly generated. • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/146e832478954e80910f965cfece799e/drainage.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/188f626da9f94d3a90350688ea633db7/half_basin.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/2a6f0900f6424a4298179cf967b520b4/length_slope.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/2f1a07d3617e422f8ada83f1c31be861/accumulation.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/4114f2a8049e4999aa119afeedbf5fa8/basin.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/57b019cca54a4b4cb97b7dc7f932a7af/stream.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/73f4c1e80722461fba1087e6ad17e997/slope_steepness.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/74e539c6455d4ccd92f3baadd92dc31e/tci.tif • /private/var/folders/rd/wzfh_5h110l121rmlxn61v440000gn/T/processing_yomvoy/9341f608a39248628203df1630046f77/spi.tif You can check the 'Log Messages Panel' in QGIS main window to find more information about the execution of the algorithm.

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  • What does the "log messages panel" say? Had you set a threshold? – Erik Jan 13 at 12:46
  • 1
    Yes, I have set it and it still gives me the same error. The log message panel says basically the same as what I posted in the question. I'm adding a screenshot of the log panel – Luna Paluna Jan 13 at 12:56
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There is an issue with the r.watershed for MacOs and the team will work on it according to what they told me in my GitHub report. Here is the thread https://github.com/qgis/QGIS/issues/40996

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