Liste d'errreurs dans Konqueror (Dolphin)

Bonjour,
Je tape Dolphin (=Konqueror) dans ma console, j'ai divers rapports d'erreurs. Est-ce grave, doc ? :)

[emmanuel@localhost ~]$ dolphin
"/usr/bin/dolphin(7941)" Error in thread 3052055296 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/dolphin(7941)" Error in thread 3052055296 : "QLocalSocket::connectToServer: Invalid name"

ided by any .service files"
[emmanuel@localhost ~]$ WARNING: field 'http://strigi.sf.net/ontologies/0.9#debugParseError' is not defined in any rdfs ontology database.
/usr/lib/strigi/strigita_au.so
/usr/lib/strigi/strigita_avi.so
/usr/lib/strigi/strigita_avi.so: undefined symbol: strigiAnalyzerFactory
/usr/lib/strigi/strigita_dvi.so

WARNING: field 'dds volume depth' is not defined in any rdfs ontology database.
WARNING: field 'dds mipmap count' is not defined in any rdfs ontology database.
WARNING: field 'dds image type' is not defined in any rdfs ontology database.
WARNING: field 'font.family' is not defined in any rdfs ontology database.
WARNING: field 'font.weight' is not defined in any rdfs ontology database.
WARNING: field 'font.slant' is not defined in any rdfs ontology database.
WARNING: field 'font.width' is not defined in any rdfs ontology database.
WARNING: field 'font.spacing' is not defined in any rdfs ontology database.
WARNING: field 'font.foundry' is not defined in any rdfs ontology database.
WARNING: field 'content.version' is not defined in any rdfs ontology database.
WARNING: field 'document.stats.image_count' is not defined in any rdfs ontology database.

Par exemple, c'est un échantillon, alors que l'ordinateur fonctionne bien, une fois.