I downloaded and installed Quantum GIS 1.5.0 with GRASS using the OSGeo4W installer on my Windows XP machine. Unfortunately, when I go to Plugins>Manage Plugins I cannot find the GRASS plugin. When I browse to OSGeo4W\apps\qgis\plugins I can see grassplugin.dll, grassrasterprovider.dll and grassprovider.dll. So, I would appreciate it if someone could tell me how to make QGIS recognize the GRASS install.

  • Is GRASS itself installed via OSGeo4W? Do you see other plugins?
    – underdark
    Oct 1 '10 at 9:12
  • What do you see if you go to Plugins>GRASS? I see 4 plugins enabled, but the rest are grey'd-out. I haven't installed GRASS though.
    – DavidF
    Oct 1 '10 at 15:01
  • Hi jvangeld, we'll need further information from you in order to answer your question.
    – scw
    Oct 4 '10 at 17:59
  • 1
    David, I do not have an option for GRASS in my Plugins menu, and it does not show up in Manage Plugins...
    – jvangeld
    Oct 9 '10 at 0:29
  • 1
    New and related development: gis.stackexchange.com/a/319333/5256 Apr 19 '19 at 11:07

I just installed QGIS 1.5.0 two days ago. The GRASS plugin shows up in my Plugin Manager and under the Plugin Menu. I used the Standalone Installer though, rather than the OSGeo4W Installer. You might want to try that route. (http://www.qgis.org/wiki/Download)

You also have to set up a GRASS Database through the "Plugins > Grass > New Mapset" menu in order to get the other GRASS Plugin Menu items to become active.

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  • Thanks! That did it. Apparently there is some issue with the OSGeo4W installer and the GRASS plugin.
    – jvangeld
    Oct 9 '10 at 1:36

See also the draft "QGIS GRASS Cookbook" which is available here: http://grass.osgeo.org/wiki/QGIS_GRASS_Cookbook

In the long run it should go into the QGIS user manual as well.

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