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I have attempted to use the GRASS plugin v.clean in QGIS 2.18.15 to sort out a messy polygon layer. When I tried to run the algorithm. An error message popped up;

Error Executing Algorithm

I attempted to open the existing GRASS software I had on my computer. This window pops up.

How do you install this software?

Adding Location for GRASS software

  • If that window pops up you have installed it. Try creating a location and GRASS will start. See grass.osgeo.org/documentation/first-time-users . I dont know why it does not work from QGIS though. – BERA Jan 7 '18 at 9:15
  • I am unable to add new location using the link you have provided. A blank error message keep popping up every time I try to add a location – Rose Jan 7 '18 at 12:33
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    Your GRASS GIS installation works fine (the second window is the stand-alone startup). The issue is that your QGIS installation does not find GRASS GIS. Which QGIS version do you use? Please edit the posting with that information, thanks. – markusN Jan 7 '18 at 19:28
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    remember to activate the plugin, from the plugins dialog; you may see the process options without the plugin being active – Elio Diaz Jan 9 '18 at 20:17

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