The error we get just says
java.lang.NullPointerException at org.ametys.cms.content.MetadataSetDefGenerator._saxMetadataSetElement(MetadataSetDefGenerator.java:148)
Adding the metadatasetName may be useful.
The error we get just says
java.lang.NullPointerException at org.ametys.cms.content.MetadataSetDefGenerator._saxMetadataSetElement(MetadataSetDefGenerator.java:148)
Adding the metadatasetName may be useful.
We should throw a detailed exception like 'The metatada-set <name> in mode <mode> references an unexisting metadata: <metadata>'.