Hmm… Ik krijg nu wel features terug. In de logs van QGIS krijg ik wel allerlei meldingen:
2021-05-21T10:56:42 CRITICAL Layer is not valid : The layer pagingEnabled='true' preferCoordinatesForWfsT11='false' restrictToRequestBBOX='1' srsname='http://www.opengis.net/def/crs/EPSG/0/4258' typename='ps-cdda:ProtectedSite' url='https://geodata.nationaalgeoregister.nl/inspire/ps-cdda/wfs' version='auto' is not a valid layer and can not be added to the map. Reason:
Kijk ik specifiek bij WFS in het log-panel, dan krijg ik:
2021-05-21T10:55:02 WARNING Download of features failed: Error transferring https://geodata.nationaalgeoregister.nl/ps-cdda/wfs?SERVICE=WFS&REQUEST=GetFeature&VERSION=2.0.0&TYPENAMES=ps-cdda:PS.ProtectedSite&TYPENAME=ps-cdda:PS.ProtectedSite&STARTINDEX=0&COUNT=1&SRSNAME=urn:ogc:def:crs:EPSG::3035 - server replied:
2021-05-21T10:55:02 WARNING Server generated an exception in GetFeature response: java.lang.RuntimeException: java.lang.RuntimeException: java.io.IOException
java.lang.RuntimeException: java.io.IOException
java.io.IOExceptionCannot do natural order without a primary key, please add it or specify a manual sort over existing attributes
2021-05-21T10:55:02 WARNING Retrying request https://geodata.nationaalgeoregister.nl/ps-cdda/wfs?SERVICE=WFS&REQUEST=GetFeature&VERSION=2.0.0&TYPENAMES=ps-cdda:PS.ProtectedSite&TYPENAME=ps-cdda:PS.ProtectedSite&STARTINDEX=0&COUNT=1&SRSNAME=urn:ogc:def:crs:EPSG::3035: 1/3
2021-05-21T10:56:42 WARNING Analysis of DescribeFeatureType response failed for url pagingEnabled='true' preferCoordinatesForWfsT11='false' restrictToRequestBBOX='1' srsname='http://www.opengis.net/def/crs/EPSG/0/4258' typename='ps-cdda:ProtectedSite' url='https://geodata.nationaalgeoregister.nl/inspire/ps-cdda/wfs' version='auto': It is probably a schema for Complex Features.
Hopelijk zie je hier iets tussen, wat kan verklaren waarom het niet lukt?