Despliegue de Capistrano y Git. Error "origen fatal" no parece ser un repository git

Cloné el código con Git desde mi máquina local a GitHub. Ahora quiero implementar mi código en el server de producción con Capistrano.

Puedo conectarme por SSH desde mi máquina local y desde el server de producción a Github. Puedo hacer git clone desde GitHub en mi server de producción. Pero con la cap deploy tengo este error:

"origen" fatal no parece ser un repository git

 me@ubuntu:~/projects/4b1_1602$ cap deploy * 20:36:56 == Currently executing `deploy' * 20:36:56 == Currently executing `deploy:update' ** transaction: start * 20:36:56 == Currently executing `deploy:update_code' updating the cached checkout on all servers executing locally: "git ls-remote git@github.com:MyName/MyRepo.git master" command finished in 3390ms * executing "if [ -d /home/mysite/shanetworking/cached-copy ]; then cd /home/mysite/shanetworking/cached-copy && git fetch -q origin && git fetch --tags -q origin && git reset -q --hard 85617dd2acf44e383f238e5b7bfcbd50ad4e54cc && git clean -q -d -x -f; else git clone -q git@github.com:MyName/MyRepo.git /home/mysite/shanetworking/cached-copy && cd /home/mysite/shanetworking/cached-copy && git checkout -q -b deploy 85617dd2acf44e383f238e5b7bfcbd50ad4e54cc; fi" servers: ["mysite.com"] Password: [mysite.com] executing command ** [mysite.com :: err] fatal: 'origin' does not appear to be a git repository ** [mysite.com :: err] fatal: The remote end hung up unexpectedly command finished in 695ms *** [deploy:update_code] rolling back * executing "rm -rf /home/mysite/releases/20120225163720; true" servers: ["mysite.com"] [mysite.com] executing command command finished in 409ms failed: "rvm_path=$HOME/.rvm/ $HOME/.rvm/bin/rvm-shell '1.9.3' -c 'if [ -d /home/mysite/shanetworking/cached-copy ]; then cd /home/mysite/shanetworking/cached-copy && git fetch -q origin && git fetch --tags -q origin && git reset -q --hard 85617dd2acf44e383f238e5b7bfcbd50ad4e54cc && git clean -q -d -x -f; else git clone -q git@github.com:MyName/MyRepo.git /home/mysite/shanetworking/cached-copy && cd /home/mysite/shanetworking/cached-copy && git checkout -q -b deploy 85617dd2acf44e383f238e5b7bfcbd50ad4e54cc; fi'" on mysite.com me@ubuntu:~/projects/4b1_1602$ 

Mi deploy.rb:

 $:.unshift(File.expand_path('./lib', ENV['rvm_path'])) require 'rvm/capistrano' require 'bundler/capistrano' require 'capistrano_colors' server "mysite.com", :app, :web, :db, :primary => true set :application, "mysite" set :rails_env, "production" set :app_dir, "/home/#{application}" set :deploy_to, "#{app_dir}" set :user, "#{application}" set :use_sudo, false set :unicorn_conf, "#{deploy_to}/current/config/unicorn.rb" set :unicorn_pid, "#{deploy_to}/shanetworking/pids/unicorn.pid" set :rvm_ruby_string, '1.9.3' set :rvm_type, :user set :repository, "git@github.com:MyName/MyRepo.git" set :scm, 'git' set :branch, 'master' set :scm_verbose, false set :deploy_via, :remote_cache # set :repository_cache, "cached_copy" #ssh_options[:forward_agent] = true namespace :deploy do desc "Server restart." task :restart do run "if [ -f #{unicorn_pid} ] && [ -e /proc/$(cat #{unicorn_pid}) ]; then kill -USR2 `cat #{unicorn_pid}`; else cd #{deploy_to}/current && bundle exec unicorn -c #{unicorn_conf} -E #{rails_env} -D; fi" end task :start do run "bundle exec unicorn -c #{unicorn_conf} -E #{rails_env} -D" end task :stop do run "if [ -f #{unicorn_pid} ] && [ -e /proc/$(cat #{unicorn_pid}) ]; then kill -QUIT ` cat #{unicorn_pid}`; fi" end desc "Symlink to public." task :symlink_public do run "mv #{release_path}/public #{release_path}/public_static" run "ln -s #{shanetworking_path}/public #{release_path}/public" run "cp -r #{release_path}/public_static/* #{release_path}/public" run "rm -r #{release_path}/public_static" end desc "Compile asets" task :assets do run "cd #{release_path}; RAILS_ENV=#{rails_env} bundle exec rake assets:precompile" end desc "Symlink to upload." task :symlink_upload do #run "unlink #{release_path}/public/uploads" run "ln -s #{shanetworking_path}/uploads #{release_path}/public/uploads" run "chmod 755 #{app_dir}" end desc "Database migrate." task :db_migrate do run "cd #{release_path}; bundle exec rake db:migrate RAILS_ENV=#{rails_env}" end desc "Update the crontab file" task :update_crontab, :roles => :db do run "cd #{release_path} && bundle exec whenever --update-crontab #{application}" end end #before "deploy:symlink", "deploy:symlink_public" #before "deploy:symlink", "deploy:assets" before 'deploy:symlink', 'deploy:symlink_upload' after 'deploy:update_code', 'deploy:db_migrate' #after "deploy:symlink", "deploy:update_crontab" #before 'deploy:finalize_update', 'deploy:public_folders'