Integrity Integrity

I can't launch the application.

tkn@tkn-desktop-ubuntu ~/tmp $ integrity launch
/usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:636:in report_activate_error': RubyGem version error: rack(1.0.0 not >= 0.9.1, < 1.0) (Gem::LoadError)

from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:141:in `activate'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:165:in `activate'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:164:in `each'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:164:in `activate'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:165:in `activate'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:164:in `each'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:164:in `activate'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:49:in `gem'
from /usr/local/bin/integrity:18

tkn@tkn-desktop-ubuntu ~/tmp $ gem list --local

LOCAL GEMS

abstract (1.0.0)
actionmailer (2.3.2, 2.2.2, 2.1.2, 2.1.0)
actionpack (2.3.2, 2.2.2, 2.1.2, 2.1.0)
activerecord (2.3.2, 2.2.2, 2.1.2, 2.1.0)
activeresource (2.3.2, 2.2.2, 2.1.2, 2.1.0)
activesupport (2.3.2, 2.2.2, 2.1.2, 2.1.0)
addressable (2.1.0, 2.0.2)
bcrypt-ruby (2.0.5)
BlueCloth (1.0.0)
builder (2.1.2)
cap_gun (0.0.9)
capistrano (2.5.5, 2.5.4)
capistrano-ext (1.2.1)
ci_reporter (1.6.0)
cmdparse (2.0.2)
coderay (0.8.312, 0.7.4.215)
columnize (0.3.0)
commonwatir (1.6.2)
composite_primary_keys (2.2.2, 1.0.10)
configuration (0.0.5)
crack (0.1.2)
cucumber (0.3.11, 0.3.1, 0.2.0, 0.1.16)
curb (0.3.5, 0.3.4, 0.3.2)
daemons (1.0.10)
data_mapper (0.9.11)
data_objects (0.9.12)
dcov (0.2.2)
diff-lcs (1.1.2)
directory_watcher (1.2.0, 1.1.2)
dm-aggregates (0.9.11)
dm-cli (0.9.11)
dm-core (0.9.11)
dm-is-tree (0.9.11)
dm-migrations (0.9.11)
dm-observer (0.9.11)
dm-serializer (0.9.11)
dm-timestamps (0.9.11)
dm-types (0.9.11)
dm-validations (0.9.11)
do_sqlite3 (0.9.12)
echoe (3.1.1, 3.0.2)
erubis (2.6.4, 2.6.2)
eventmachine (0.12.8)
extlib (0.9.12)
facets (2.5.2, 2.5.1, 2.4.5, 2.4.3)
FakeWeb (1.1.2)
feedtools (0.2.29)
firewatir (1.6.2)
flay (1.2.1, 1.0.0)
flexmock (0.8.6, 0.8.5, 0.8.3)
flog (2.1.0, 1.2.0)
git (1.1.1)
gosu (0.7.13.3, 0.7.13)
haml (2.0.9, 2.0.1)
highline (1.5.1, 1.5.0)
hoe (2.1.0, 1.12.2, 1.11.0, 1.8.2)
hpricot (0.8.1, 0.7, 0.6.164, 0.6)
htmlentities (4.0.0)
httparty (0.4.3, 0.3.1, 0.2.6)
httpclient (2.1.5, 2.1.4, 2.1.2)
innate (2009.06.12, 2009.04.12, 2009.04)
integrity (0.1.10)
irb_rocket (0.1.2)
jeweler (1.0.1, 0.11.0)
json (1.1.6, 1.1.4, 1.1.3)
launchy (0.3.3, 0.3.2)
libxml-ruby (1.1.3, 1.1.2, 0.9.5, 0.8.3)
libxslt-ruby (0.9.2, 0.9.1)
linecache (0.43)
lockfile (1.4.3)
logging (1.1.4, 1.1.0, 0.9.7, 0.9.6)
loquacious (1.3.0)
maruku (0.6.0, 0.5.9)
mislav-will_paginate (2.3.11, 2.3.8, 2.2.3)
mocha (0.9.5, 0.9.3)
mysql (2.7)
nanoc (2.2.2, 2.2.1, 2.1.6, 2.1.5)
net-scp (1.0.2)
net-sftp (2.0.2)
net-ssh (2.0.11, 2.0.10)
net-ssh-gateway (1.0.1)
nokogiri (1.3.1, 1.2.3)
open4 (0.9.6)
ParseTree (3.0.3, 3.0.2)
peterwald-git (1.1.4)
polyglot (0.2.5, 0.2.4)
punycode4r (0.2.0)
rack (1.0.0)
rails (2.3.2, 2.2.2, 2.1.2, 2.1.0)
rake (0.8.7, 0.8.4, 0.8.3)
ramaze (2009.06.12, 2009.04, 2009.02, 2008.06)
rcov (0.8.1.2.0)
rdiscount (1.3.4, 1.2.9)
rdoc (2.4.3, 2.4.1, 2.0.0)
RedCloth (4.2.0, 4.1.9, 3.0.4, 3.0.0)
rexml-expansion-fix (1.0.1)
rmagick (2.9.2, 2.9.1)
rspec (1.2.6, 1.2.4, 1.2.0, 1.1.11)
rspec-rails (1.2.6, 1.2.4, 1.2.0, 1.1.11)
ruby-debug (0.10.3)
ruby-debug-base (0.10.3)
ruby-graphviz (0.9.0)
ruby-net-ldap (0.0.4)
ruby-prof (0.7.3, 0.6.0)
ruby-terminfo (0.1)
ruby_parser (2.0.2, 2.0.1)
rubyforge (1.0.3, 1.0.1, 1.0.0)
RubyInline (3.8.1)
s4t-utils (1.0.4)
Saikuro (1.1.0)
sexp_processor (3.0.1, 3.0.0)
Shoulda (1.2.0)
sinatra (0.9.2, 0.9.1.1)
sinatra-authorization (1.0.0)
sketches (0.1.0)
soap4r (1.5.8)
sqlite3-ruby (1.2.4)
staugaard-idn_actionmailer (0.2)
syntax (1.0.0)
technicalpickles-gemstalker (0.4.0, 0.3.4)
term-ansicolor (1.0.3)
thin (1.2.2)
thor (0.9.9)
thoughtbot-shoulda (2.10.1, 2.0.5)
tidy (1.1.2)
treetop (1.2.6, 1.2.5, 1.2.4)
troelskn-handsoap (0.2.8, 0.2.7, 0.2.3, 0.2.1)
unicode (0.1)
user-choices (1.1.6)
uuidtools (2.0.0, 1.0.7)
vlad (1.3.2, 1.2.0)
webby (0.9.4, 0.9.3)
webgen (0.5.8, 0.5.7, 0.5.6)
why-bloopsaphone (0.4)
will_paginate (2.2.2)
wirble (0.1.3, 0.1.2)
xml-simple (1.0.12, 1.0.11)
ZenTest (4.1.1, 4.0.0, 3.11.0)