Bug report #20705

r.reclass Grass tool not working

Added by Charlotte Jeal almost 2 years ago. Updated almost 2 years ago.

Status:Open
Priority:Normal
Assignee:-
Category:mac_os_specific
Affected QGIS version:3.4.2 Regression?:No
Operating System:macOS Mojave Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:28525

Description

I am trying to reclassify a raster on QGIS 3.4 and I keep getting this error:

File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74", line 1697 sys.stdout.write("%s\n" % grass_version) ^ TabError: inconsistent use of tabs and spaces in indentation File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74", line 1697 sys.stdout.write("%s\n" % grass_version) ^ TabError: inconsistent use of tabs and spaces in indentation

I have had a look at the code and tried to fix it but then got further errors so therefore had to redownload QGIS to take a step back.

Screenshot 2018-12-03 at 14.03.43.png - A screenshot of the error message (198 KB) Charlotte Jeal, 2018-12-03 03:03 PM

History

#1 Updated by Giovanni Manghi almost 2 years ago

  • Easy fix? changed from Yes to No
  • Category changed from GRASS to Processing/GRASS

works ok on Windows and Linux.

#2 Updated by Nyall Dawson almost 2 years ago

  • Category changed from Processing/GRASS to mac_os_specific

Not a processing issue - the error is coming from grass itself, so it's either an upstream issue or a packaging issue.

#3 Updated by Charlotte Jeal almost 2 years ago

Following successful cleanup of tabs / space indentation issues we executed the code and encountered a further issue.
Which, it appears was caused by a type mismatch on line 625, where the environment variable 'MANPATH' is being set to the response from subprocess.Popen('man path'), which needs to be a string but on a MAC it was a byte array.

The code now executes but fails to generate the result, reporting:-
Results: {'output': <QgsProcessingOutputLayerDefinition {'sink':/var/folders/yb/9h6dny1x14bffjmfzvvxmwb80000gn/T/processing_22d00b870ba84e63829b7f4dfe2d9b04/ede0c63ba1d2409eb334c0668d22ae12/output.tif, 'createOptions': {'fileEncoding': 'System'}}>}

Loading resulting layers
The following layers were not correctly generated.<ul><li>/var/folders/yb/9h6dny1x14bffjmfzvvxmwb80000gn/T/processing_22d00b870ba84e63829b7f4dfe2d9b04/ede0c63ba1d2409eb334c0668d22ae12/output.tif</li></ul>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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