Endless lines of rubish after running KDE applications

[Paul Smith]

Dear All,

After closing KDE applications (running on XFCE), I get endless lines
as the following ones on the console:

----------------------------
kbuildsycoca4(15800) KBuildServiceFactory::populateServiceTypes:
"/usr/share/applications/totem.desktop" specifies undefined
mimetype/servicetype "x-content/video-dvd"
kbuildsycoca4(15800) KBuildServiceFactory::populateServiceTypes:
"/usr/share/applications/totem.desktop" specifies undefined
mimetype/servicetype "x-content/video-vcd"
kbuildsycoca4(15800) KBuildServiceFactory::populateServiceTypes:
"/usr/share/applications/totem.desktop" specifies undefined
mimetype/servicetype "x-content/video-svcd"
kbuildsycoca4(15800)/kdecore (KService)
KBuildServiceFactory::populateServiceTypes: parent mimetype not found:
"text/xml"
kbuildsycoca4(15800)/kdecore (KService)
KBuildServiceFactory::populateServiceTypes: parent mimetype not found:
"text/xml"
kbuildsycoca4(15800)/kdecore (KService)
KBuildServiceFactory::populateServiceTypes: parent mimetype not found:
"text/xml"
----------------------------

How can I stop this?

Thanks in advance,

Paul