On installing Lucid the link from my address book to the contact file was lost, and that was easy to reinstate. My Akonadi birthday resource reported the error that is the subject of this bug report. I followed the steps in https://bugs.launchpad.net/ubuntu/lucid/+source/akonadi/+bug/554514 and substituted the location of my address / contacts file in the command:
export XDG_DATA_DIRS="/location of my contacts file:$XDG_DATA_DIRS",
and all is well now.
On installing Lucid the link from my address book to the contact file was lost, and that was easy to reinstate. My Akonadi birthday resource reported the error that is the subject of this bug report. I followed the steps in https:/ /bugs.launchpad .net/ubuntu/ lucid/+ source/ akonadi/ +bug/554514 and substituted the location of my address / contacts file in the command: DIRS="/ location of my contacts file:$XDG_ DATA_DIRS" ,
export XDG_DATA_
and all is well now.