When I double click on an entry in alexandria, the program chrashes (see log below). I entered the books by entering
ISBN and all books were found in internet. So all neccessary field should be filled by alexandria.

Output when started in terminal window
======================================
alexandria
W, [2010-12-05T09:40:06.131509 #2899]  WARN -- : Unable to open the Evolution address book: Cannot open book
/usr/lib/ruby/1.8/alexandria/ui/completion_models.rb:156:in `concat': can't convert nil into Array
	 from /usr/lib/ruby/1.8/alexandria/ui/completion_models.rb:156:in `rebuild_models'
	 from /usr/lib/ruby/1.8/alexandria/ui/completion_models.rb:154:in 

+++ some lines are deleted +++

`main_with_queue'
	 from /usr/lib/ruby/1.8/alexandria/ui.rb:52:in `start_gtk'
	 from /usr/lib/ruby/1.8/alexandria/ui.rb:58:in `main'
	 from /usr/lib/ruby/1.8/alexandria.rb:40:in `main'
	 from /usr/bin/alexandria:34
/usr/bin/alexandria:35: [BUG] Segmentation fault
ruby 1.8.7 (2010-06-23 patchlevel 299) [x86_64-linux]

Aborted

May be the content of file is also helpful:
===========================================
--- !ruby/object:Alexandria::Book 
authors: 
- Folke Tegetthoff
- Brigitte Smith
edition: ""
isbn: "9783505092336"
library: 
notes: ""
own: true
publisher: F. Schneider
publishing_year: 1986
redd: false
saved_ident: "9783505092336"
tags: []

title: "Ich wollte dir von meinem Zwerg erza\xC3\x8C\xC2\x88hlen ... : aber da la\xC3\x8C\xC2\x88uft er weg! Wo,
wo, wo ist sein Versteck?"
version: 0.6.3
want: true