kpackagekit fails to install kubuntu-restricted-extras

Binary package hint: kpackagekit

The very first thing I wanted to do after installing Kubuntu 9.04 was to install the package kubuntu-restricted-extras. Unfortunately, kpackagekit always exited instead of installing the package. I retried on konsole and only see the following output:

$ kpackagekit
KPackageKit(3785) kpackagekit::KPackageKit::newInstance: SHOW UI!
KPackageKit(3785) kpackagekit::KPackageKit::showUi: GO UI!
KPackageKit(3785) KpkAddRm::setCurrentAction:
enumFromString ( Group ) : converted "unknown" to "Unknown" , enum value -1
KPackageKit(3785) KpkTransactionBar::setBehaviors: Hide! 1
ronny@ronny-desktop:~$ KPackageKit(3785) KpkAddRm::on_actionFindName_triggered:
KPackageKit(3785) KpkAddRm::setCurrentAction:
New transaction with tid "/24_dccbbcdd_data"
removing transaction from pool : "/24_dccbbcdd_data"
KPackageKit(3785) KpkAddRm::on_actionFindName_triggered:
KPackageKit(3785) KpkAddRm::setCurrentAction:
New transaction with tid "/25_acbceace_data"
enumFromString ( State ) : converted "collection-available" to "CollectionAvailable" , enum value -1
enumFromString ( State ) : converted "collection-available" to "CollectionAvailable" , enum value -1
enumFromString ( State ) : converted "collection-installed" to "CollectionInstalled" , enum value -1
enumFromString ( State ) : converted "collection-available" to "CollectionAvailable" , enum value -1
enumFromString ( State ) : converted "collection-available" to "CollectionAvailable" , enum value -1
enumFromString ( State ) : converted "collection-available" to "CollectionAvailable" , enum value -1
enumFromString ( State ) : converted "collection-available" to "CollectionAvailable" , enum value -1
removing transaction from pool : "/25_acbceace_data"
New transaction with tid "/26_ebeadaba_data"
enumFromString ( License ) : converted "unknown" to "Unknown" , enum value -1
removing transaction from pool : "/26_ebeadaba_data"
KPackageKit(3785) KpkAddRm::~KpkAddRm: Saving filters settings

Fortunately, kpackagekit managed to install synaptic (which could install kubuntu-restricted-extras withoug any problem).

Summary:
First impression of Kubuntu-9.04 -> unfinished, broken, buggy.