[Osgeo4w-trac] [osgeo4w] #651: Error loading qgis-dev - Could not load qgis_app.dll (hdf5 needed but not installed)

[OSGeo4W]

#651: Error loading qgis-dev - Could not load qgis_app.dll (hdf5 needed but not
installed)
------------------------+---------------------------
Reporter:  andreaerdna  |      Owner:  osgeo4w-dev@…
    Type:  defect       |     Status:  new
Priority:  major        |  Component:  Package
 Version:               |   Keywords:
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 After installing qgis-dev 3.17.0-11 on Windows 10 from scratch via OSGeo4W
 network installer the following error appears trying to launch QGIS:

 [[Image(error.png)]]

 ''Error loading QGIS''
 ''Oops, looks like an error loading QGIS''

 ''Details:''
 ''Could not load qgis_app.dll''
 ''Windows Error: Impossibile trovare il modulo specificato.''

 ''Help:''
 ''Check C:\OSGeo4W64_3\bin\qgis-bin.env for correct environment paths”''

 It seems that the package hdf5 was not automatically installed, while
 HDF5_HL.DLL and HDF5.DLL are needed by NETCDF.DLL that is needed by
 GDAL303.DLL.

 In fact, installing the package hdf5 package fixes the issue and QGIS can
 be launched.

 The hdf5 package is not among the packages which neither netcdf nor gdal-
 dev depends on.

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Ticket URL: <https://trac.osgeo.org/osgeo4w/ticket/651>
OSGeo4W <http://trac.osgeo.org/osgeo4w>
OSGeo4W is the Windows installer and package environment for the OSGeo stack.