What's hgext.hgciaadium and why's it failing?

[Evan Schoenberg, M.D.]

Anybody know the story behind hgext.hgciaadium and why it might be failing now?

[evands:Shindig] [12:25:49] [Mon May 10] [~/adium-1.4] 
=> hg push
extension 'transplant' overrides commands: transplant
pushing to ssh://hg@hg.adium.im/adium-1.4
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 2 changesets with 4 changes to 4 files
remote: notify: sending 1 subscribers 2 changes
remote: abort: changegroup.cia hook is invalid (import of "hgext.hgciaadium" failed)
abort: unexpected response: empty string

-Evan