Deploy failed with Gitolite and Capistrano - capistrano

Question

In a project, I use gitolite and capistrano. It's work fine for another developper.
The issue is it's doesn't work for me : I can't actually deploy with capistrano.
When I run the cap deploy command, it ask me the password of the server (here, ok) and the password of the gitolite, which doesn't exist.
C:\wamp\www\miiaou>cap deploy
* ←[32m2012-12-12 15:12:34 executing `deploy'←[0m
* ←[32m2012-12-12 15:12:34 executing `deploy:update'←[0m
** transaction: start
* ←[32m2012-12-12 15:12:34 executing `deploy:update_code'←[0m
updating the cached checkout on all servers
←[33mexecuting locally: "git ls-remote gitolite#miiaou.fr:miiaou master"←[0m
←[2;37mcommand finished in 1351ms←[0m
* ←[33mexecuting "if [ -d /home/miiaou/miiaou_prod/shared/cached-copy ]; then
cd /home/miiaou/miiaou_prod/shared/cached-copy && git fetch -q origin && git fet
ch --tags -q origin && git reset -q --hard 117b2bb34817d89a1fbe34f1891ac3c823a23
fce && git clean -q -d -x -f; else git clone -q gitolite#miiaou.fr:miiaou /home/
miiaou/miiaou_prod/shared/cached-copy && cd /home/miiaou/miiaou_prod/shared/cach
ed-copy && git checkout -q -b deploy 117b2bb34817d89a1fbe34f1891ac3c823a23fce; f
i"←[0m
servers: ["miiaou.fr"]
Password:
[miiaou.fr] executing command
** [miiaou.fr :: out] Error reading response length from authentication socket.
** [miiaou.fr :: out] gitolite#miiaou.fr's password:
Password:
** [miiaou.fr :: out]
** ←[31m[miiaou.fr :: out] Permission denied, please try again.
** gitolite#miiaou.fr's password:←[0m
Password:
** [miiaou.fr :: out]
** ←[31m[miiaou.fr :: out] Permission denied (publickey,password).
** fatal: The remote end hung up unexpectedly←[0m
←[2;37mcommand finished in 36755ms←[0m
*** [←[34mdeploy:update_code←[0m] ←[34mrolling back←[0m
* ←[33mexecuting "rm -rf /home/miiaou/miiaou_prod/releases/20121212141318; tru
e"←[0m
servers: ["miiaou.fr"]
[miiaou.fr] executing command
←[2;37mcommand finished in 133ms←[0m
failed: "if [ -d /home/miiaou/miiaou_prod/shared/cached-copy ]; then cd /home/mi
iaou/miiaou_prod/shared/cached-copy && git fetch -q origin && git fetch --tags -
q origin && git reset -q --hard 117b2bb34817d89a1fbe34f1891ac3c823a23fce && git
clean -q -d -x -f; else git clone -q gitolite#miiaou.fr:miiaou /home/miiaou/miia
ou_prod/shared/cached-copy && cd /home/miiaou/miiaou_prod/shared/cached-copy &&
git checkout -q -b deploy 117b2bb34817d89a1fbe34f1891ac3c823a23fce; fi" on miiao
u.fr
I don't understand why it need a password because the ssh keys works.
Can anybody help me?
Thanks
edit : if that help, here my deploy.rb
require "bundler/capistrano"
# Rails 3.1 : laod capistrano task to precompile assets
# bundle exec rake RAILS_ENV=staging RAILS_GROUPS=assets assets:precompile
load "deploy/assets"
set :stages, %w(production)
set :default_stage, "production"
set :application, "miiaou"
set :repository, "gitolite#miiaou.fr:#{application}"
set :domain, "miiaou.fr"
# If you aren't deploying to /u/apps/#{application} on the target
# servers (which is the default), you can specify the actual location
# via the :deploy_to variable:
set :deploy_to, "/home/miiaou/#{application}_prod"
set :shared_path, "/home/miiaou/#{application}_prod/shared"
set :scm, "git"
set :branch, "master"
# Agent Forwarding : use local keys for git
ssh_options[:forward_agent] = true
set :deploy_via, :remote_cache
default_run_options[:pty] = true
ssh_options[:paranoid] = false
set :user, "root"
set :runner, "root"
set :use_sudo, false
role :web, domain # Your HTTP server, Apache/etc
role :app, domain # This may be the same as your `Web` server
role :db, domain, :primary => true # This is where Rails migrations will run
# Add RVM's lib directory to the load path.
#$:.unshift(File.expand_path('./lib', ENV['rvm_path']))
#require "rvm/capistrano"
#set :rvm_ruby_string, '1.9.2'
task :clean_assets, :roles => :app do
run "rm -rf #{shared_path}/assets/*"
end
task :more_symlinks, :roles => :app do
# linkage des fichiers de config
%w(database).each do |config_file|
run "ln -nfs #{shared_path}/config/#{config_file}.yml #{release_path}/config/#{config_file}.yml"
end
run "ln -nfs #{shared_path}/assets #{release_path}/public/assets"
end
task :restart_daemons, :roles => :app do
#run "cd #{release_path} && bundle exec whenever --set 'environment=#{rails_env}' --update-crontab"
#run "cd #{release_path} && RAILS_ENV=#{rails_env} ruby script/delayed_job restart"
end
# If you are using Passenger mod_rails uncomment this:
namespace :deploy do
task :start do ; end
task :stop do ; end
task :restart, :roles => :app, :except => { :no_release => true } do
run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
end
end
before :'deploy:assets:precompile', :more_symlinks