[osgeo4w-dev] [osgeo4w] #655: gdal300dll and proj62dll missing in 3.16.2 and 3.10.13 standalone installer (failed to load GRASS plugin dlls)

[OSGeo4W]

#655: gdal300dll and proj62dll missing in 3.16.2 and 3.10.13 standalone installer
(failed to load GRASS plugin dlls)
------------------------+---------------------------
Reporter:  andreaerdna  |      Owner:  osgeo4w-dev@…
    Type:  defect       |     Status:  new
Priority:  critical     |  Component:  Installer
 Version:               |   Keywords:
------------------------+---------------------------
 In both QGIS 3.10.13 and QGIS 3.16.2 standalone installers it is
 impossible to use the GRASS modules even launching QGIS by "QGIS Desktop
 3.16.2 with GRASS 7.8.4" or "QGIS Desktop 3.10.13 with GRASS 7.8.4" links.

 In the Plugins tab of the Log Messages Panel the following warnings are
 displayed (e.g. for QGIS 3.16.13):
 {{{
 Failed to load C:/PROGRA~1/QGIS3~1.16/apps/qgis/plugins/grassplugin7.dll
 (Reason: Cannot load library
 C:\PROGRA~1\QGIS3~1.16\apps\qgis\plugins\grassplugin7.dll: Impossibile
 trovare il modulo specificato.)
 Failed to load C:/PROGRA~1/QGIS3~1.16/apps/qgis/plugins/grassprovider7.dll
 (Reason: Cannot load library
 C:\PROGRA~1\QGIS3~1.16\apps\qgis\plugins\grassprovider7.dll: Impossibile
 trovare il modulo specificato.)
 Failed to load
 C:/PROGRA~1/QGIS3~1.16/apps/qgis/plugins/grassrasterprovider7.dll (Reason:
 Cannot load library
 C:\PROGRA~1\QGIS3~1.16\apps\qgis\plugins\grassrasterprovider7.dll:
 Impossibile trovare il modulo specificato.)
 }}}

 It seem this is due to two missing dlls needed by GRASS libraries (in
 particular by LIBGRASS_VECTOR.7.8.DLL): gdal300.dll (gdal300dll package)
 and proj_6_2.dll (proj62dll package).

 The issue doesn't occur with QGIS 3.10.12 and QGIS 3.16.1 standalone
 installers (in which gdal300.dll and proj_6_2.dll are present).

-- 
Ticket URL: <https://trac.osgeo.org/osgeo4w/ticket/655>
OSGeo4W <http://trac.osgeo.org/osgeo4w>
OSGeo4W is the Windows installer and package environment for the OSGeo stack.