Ubuntu – Evolution has no access to couchdb

Evolution gives the error "Cannot open addressbook". "We were unable to open this addressbook. This either means you have entered an incorrect URI, or the server is unreachable". "Details: Operation not permitted". (rough translation from Dutch).

Enabling verbose logging in (desktop)couchdb tells me roughly the same:

[info] [<0.7875.1>] 127.0.0.1 - - 'PUT' /contacts/ 400
[debug] [<0.7875.1>] httpd 400 error response:
 {"error":"invalid_consumer","reason":"Invalid consumer (key or signature method)."}

It seems that evolution tries to fetch the contacts, then couchdb denies access, and then evolution fails to do a proper oauth.

This is on Ubuntu 10.10, with its default dektopcouch 1.0.1.

Any hints on where to start would be most appreciated 🙂