ruby on rails - Mina deploy failed -

i try deploy rails app via mina.but when start deploy task, mina return error

-----> launching        $ cd "$release_path"        $  echo "$release_path"         $                 if [ -e '/home/ubuntu/deploy/shared/tmp/sockets/pumactl.sock' ];                  cd /home/ubuntu/deploy/current && rails_env="production" /home/ubuntu/.rbenv/shims/bundle exec pumactl -s /home/ubuntu/deplo                 cd /home/ubuntu/deploy/current && rails_env="production" /home/ubuntu/.rbenv/shims/bundle exec pumactl -s /home/ubuntu/deploy/shared/tmp/sockets/puma.state phased-restart                else                  echo 'puma not running!';                fi         not locate gemfile or .bundle/ directory  !     error: deploy failed. 

my tasks in deploy.rb passed good, when mina start launch - error.here deploy_staging.rb

require 'mina/bundler' require 'mina/rails' require 'mina/whenever' require 'mina/git' require 'mina/rbenv' require 'mina/puma' require 'mina/nginx' require 'mina/scp' node_path    = '/usr/bin/node'  set :domain,      '' set :application, 'deploy' set :server_name, '' set :deploy_to,   '/home/ubuntu/deploy' set :repository,  '' set :branch,      'master' set :bundle_bin, '/home/ubuntu/.rbenv/shims/bundle'    desc "restart resque workers" task :restart_resque => :environment   queue! %(rails_env=production rake resque:restart_workers) end  desc "precompiles assets." task :'assets_precompile:force'   queue %{       echo "-----> precompiling asset files"       #{echo_cmd %[#{rake_assets_precompile}]}     } end   task :enviroment   invoke :'rbenv:load'   queue! %(export node_path="#{node_path}")   queue! %(export path="#{node_path}:$path")   queue! %[mkdir -p "#{deploy_to}/shared/public"]   queue! %[chmod g+rx,u+rwx "#{deploy_to}/shared/public"]   queue! %[mkdir -p "#{deploy_to}/shared/vendor/assets/bower_components"]   queue! %[chmod g+rx,u+rwx "#{deploy_to}/shared/vendor/assets/bower_components"] end  desc "deploys current version staging server." task :deploy => :enviroment    deploy     invoke :'git:clone'     invoke :'deploy:link_shared_paths'     invoke :'bundle:install'     invoke :'disable_active_admin'     invoke :'rails:db_migrate'     invoke :'enable_active_admin'     invoke :'bower_install'     invoke :'assets_precompile'     invoke :'deploy:cleanup'     invoke :'restart_resque'      :launch       queue "mkdir -p #{deploy_to}/#{current_path}/tmp/"       invoke :'puma:phased_restart'     end   end   invoke :'whenever:write' end 

i remove code blocks, because forbid passed big chain of code.sorry bad english

@Малъ Скрылевъ thank response, find solution.there https://github.com/mina-deploy/mina/issues/79