Version:           unspecified (using KDE 4.5.85) 
OS:                Linux

I have 2 IMAP accounts (without cache) in KMail. After upgrading to 4.6 beta2, after launching kmail, KMail Migration Tool starts and tries to convert my IMAP accounts.

The 1st thing it said:
$ /usr/bin/kmail
kmail-migrator(10533)/libakonadi: Unable to obtain agent type for default resource agent configuration  "/usr/share/kde4/apps/akonadi/firstrun/defaultnotebook"

After that Soprano gives many errors, eg:
"/usr/bin/kmail-migrator(10533)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kmail-migrator(10533)" Soprano: "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/kmail-migrator(10533)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kmail-migrator(10533)" Soprano: "QLocalSocket::connectToServer: Invalid name"
...

And finally:
"/usr/bin/kmail-migrator(10533)" Soprano: "Unsupported operation (2)": "Invalid model"
kde(10530): Communication problem with  "kmail2" , it probably crashed. 
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." "
kmail-migrator(10533): "Migration of 'Piimariiul' to Akonadi resource failed: Resource 'Piimariiul' did not create any folders"

Then the migration-tool goes to the next IMAP account which is GMail and gets stuck in there, ie. does nothing forever. Process 'kmail-migrator' takes minimal resources meanwhile (1% CPU, 4.2 MB RAM).

Reproducible: Always

Steps to Reproduce:
After the 1st time I deleted .kde4/share/apps/kmail2, .kde4/share/config/kmail2rc and .kde4/share/config/kmail-migratorrc, and started again. Still the same..