ruby on rails 4 - cap production deploy NoMethodError: undefined method `each' for "3w":String -


i'm trying deploy app server, keep getting error cant find solution for.

when run :

bundle exec cap production deploy --trace

the output :

** invoke production (first_time) ** execute production ** invoke load:defaults (first_time) ** execute load:defaults ** invoke bundler:map_bins (first_time) ** execute bundler:map_bins ** invoke deploy:set_rails_env (first_time) ** execute deploy:set_rails_env ** invoke deploy:set_linked_dirs (first_time) ** execute deploy:set_linked_dirs ** invoke deploy:set_rails_env  ** invoke rbenv:validate (first_time) ** execute rbenv:validate ** invoke rbenv:map_bins (first_time) ** execute rbenv:map_bins ** invoke deploy (first_time) ** execute deploy ** invoke deploy:starting (first_time) ** execute deploy:starting ** invoke deploy:check (first_time) ** execute deploy:check ** invoke git:check (first_time) ** invoke git:wrapper (first_time) ** execute git:wrapper 00:00 git:wrapper       01 mkdir -p /tmp     ✔ 01 deploy@server's-ip 0.587s       uploading /tmp/git-ssh-myapp-production-root.sh 100.0%       02 chmod 700 /tmp/git-ssh-myapp-production-root.sh     ✔ 02 deploy@server's-ip 0.112s ** execute git:check 00:00 git:check       01 git ls-remote --heads git@github.com:mygiuser/myapp.git       01 *********************************** refs/heads/master     ✔ 01 deploy@server's-ip 3.695s ** invoke deploy:check:directories (first_time) ** execute deploy:check:directories 00:04 deploy:check:directories       01 mkdir -p /home/deploy/myapp/shared /home/deploy/myapp/releases     ✔ 01 deploy@server's-ip 0.109s ** invoke deploy:check:linked_dirs (first_time) ** execute deploy:check:linked_dirs 00:04 deploy:check:linked_dirs       01 mkdir -p /home/deploy/myapp/shared/bin /home/deploy/myapp/shared/log /home/deploy/myapp/shared/tmp/pids /home/deploy/myapp/…     ✔ 01 deploy@server's-ip 0.113s ** invoke deploy:check:make_linked_dirs (first_time) ** execute deploy:check:make_linked_dirs 00:04 deploy:check:make_linked_dirs       01 mkdir -p /home/deploy/myapp/shared/config     ✔ 01 deploy@server's-ip 0.127s ** invoke deploy:check:linked_files (first_time) ** execute deploy:check:linked_files ** invoke deploy:set_previous_revision (first_time) ** execute deploy:set_previous_revision ** invoke deploy:started (first_time) ** execute deploy:started ** invoke deploy:updating (first_time) ** invoke deploy:new_release_path (first_time) ** execute deploy:new_release_path ** execute deploy:updating ** invoke git:create_release (first_time) ** invoke git:update (first_time) ** invoke git:clone (first_time) ** invoke git:wrapper  ** execute git:clone 00:05 git:clone       repository mirror @ /home/deploy/myapp/repo ** execute git:update 00:05 git:update       01 git remote update --prune       01 fetching origin     ✔ 01 deploy@server's-ip 5.720s ** execute git:create_release 00:11 git:create_release       01 mkdir -p /home/deploy/myapp/releases/20161112203915     ✔ 01 deploy@server's-ip 0.115s       02 git archive master | tar -x -f - -c /home/deploy/myapp/releases/20161112203915     ✔ 02 deploy@server's-ip 0.140s ** invoke deploy:set_current_revision (first_time) ** execute deploy:set_current_revision ** invoke git:set_current_revision (first_time) ** execute git:set_current_revision 00:11 git:set_current_revision       01 echo "d081a7ed762d31da5a114b712b1ed8087898ccc2" >> revision     ✔ 01 deploy@server's-ip 0.108s ** invoke deploy:symlink:shared (first_time) ** execute deploy:symlink:shared ** invoke deploy:symlink:linked_files (first_time) ** execute deploy:symlink:linked_files 00:12 deploy:symlink:linked_files       01 mkdir -p /home/deploy/myapp/releases/20161112203915/config     ✔ 01 deploy@server's-ip 0.109s       02 rm /home/deploy/myapp/releases/20161112203915/config/database.yml     ✔ 02 deploy@server's-ip 0.114s       03 ln -s /home/deploy/myapp/shared/config/database.yml /home/deploy/myapp/releases/20161112203915/config/database.yml     ✔ 03 deploy@server's-ip 0.113s ** invoke deploy:symlink:linked_dirs (first_time) ** execute deploy:symlink:linked_dirs 00:12 deploy:symlink:linked_dirs       01 mkdir -p /home/deploy/myapp/releases/20161112203915 /home/deploy/myapp/releases/20161112203915/tmp /home/deploy/myapp/releases/…     ✔ 01 deploy@server's-ip 0.103s       02 rm -rf /home/deploy/myapp/releases/20161112203915/bin     ✔ 02 deploy@server's-ip 0.107s       03 ln -s /home/deploy/myapp/shared/bin /home/deploy/myapp/releases/20161112203915/bin     ✔ 03 deploy@server's-ip 0.104s       04 rm -rf /home/deploy/myapp/releases/20161112203915/log     ✔ 04 deploy@server's-ip 0.115s       05 ln -s /home/deploy/myapp/shared/log /home/deploy/myapp/releases/20161112203915/log     ✔ 05 deploy@server's-ip 0.134s       06 ln -s /home/deploy/myapp/shared/tmp/pids /home/deploy/myapp/releases/20161112203915/tmp/pids     ✔ 06 deploy@server's-ip 0.132s       07 ln -s /home/deploy/myapp/shared/tmp/cache /home/deploy/myapp/releases/20161112203915/tmp/cache     ✔ 07 deploy@server's-ip 0.108s       08 ln -s /home/deploy/myapp/shared/tmp/sockets /home/deploy/myapp/releases/20161112203915/tmp/sockets     ✔ 08 deploy@server's-ip 0.108s       09 ln -s /home/deploy/myapp/shared/vendor/bundle /home/deploy/myapp/releases/20161112203915/vendor/bundle     ✔ 09 deploy@server's-ip 0.111s       10 ln -s /home/deploy/myapp/shared/public/system /home/deploy/myapp/releases/20161112203915/public/system     ✔ 10 deploy@server's-ip 0.116s       11 ln -s /home/deploy/myapp/shared/public/assets /home/deploy/myapp/releases/20161112203915/public/assets     ✔ 11 deploy@server's-ip 0.115s ** invoke deploy:updated (first_time) ** invoke bundler:install (first_time) ** execute bundler:install 00:15 bundler:install       01 $home/.rbenv/bin/rbenv exec bundle install --path /home/deploy/myapp/shared/bundle --without development test --deployment --quiet     ✔ 01 deploy@server's-ip 1.179s ** execute deploy:updated ** invoke deploy:compile_assets (first_time) ** invoke deploy:set_rails_env  ** execute deploy:compile_assets ** invoke deploy:assets:precompile (first_time) ** execute deploy:assets:precompile 00:17 deploy:assets:precompile       01 $home/.rbenv/bin/rbenv exec bundle exec rake assets:precompile       01 rake aborted!       01 nomethoderror: undefined method `each' "3w":string       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_adapters/connection_specification.rb:1…       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_handling.rb:69:in `resolve'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/core.rb:46:in `configurations='       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:117:in `block (2 levels) in <class:rai…       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:28:in `block in on_load'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `each'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `on_load'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:116:in `block in <class:railtie>'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!'       01 /home/deploy/myapp/releases/20161112203915/config/environment.rb:5:in `<top (required)>'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:328:in `require_environment!'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:457:in `block in run_tasks_blocks'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define'       01 /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/rake-11.3.0/exe/rake:27:in `<top (required)>'       01 /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `load'       01 /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>'       01 tasks: top => environment       01 (see full trace running task --trace) cap aborted! sshkit::runner::executeerror: exception while executing deploy@server's-ip: rake exit status: 1 rake stdout: nothing written rake stderr: rake aborted! nomethoderror: undefined method `each' "3w":string /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_adapters/connection_specification.rb:150:in `resolve_all' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_handling.rb:69:in `resolve' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/core.rb:46:in `configurations=' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:117:in `block (2 levels) in <class:railtie>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:28:in `block in on_load' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `each' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `on_load' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:116:in `block in <class:railtie>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!' /home/deploy/myapp/releases/20161112203915/config/environment.rb:5:in `<top (required)>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:328:in `require_environment!' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:457:in `block in run_tasks_blocks' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/rake-11.3.0/exe/rake:27:in `<top (required)>' /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `load' /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>' tasks: top => environment (see full trace running task --trace) /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/runners/parallel.rb:15:in `rescue in block (2 levels) in execute' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/runners/parallel.rb:11:in `block (2 levels) in execute' sshkit::command::failed: rake exit status: 1 rake stdout: nothing written rake stderr: rake aborted! nomethoderror: undefined method `each' "3w":string /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_adapters/connection_specification.rb:150:in `resolve_all' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_handling.rb:69:in `resolve' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/core.rb:46:in `configurations=' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:117:in `block (2 levels) in <class:railtie>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:28:in `block in on_load' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `each' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `on_load' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:116:in `block in <class:railtie>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!' /home/deploy/myapp/releases/20161112203915/config/environment.rb:5:in `<top (required)>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:328:in `require_environment!' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:457:in `block in run_tasks_blocks' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/rake-11.3.0/exe/rake:27:in `<top (required)>' /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `load' /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>' tasks: top => environment (see full trace running task --trace) /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/command.rb:100:in `exit_status=' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/netssh.rb:148:in `execute_command' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:141:in `block in create_command_and_execute' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:141:in `tap' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:141:in `create_command_and_execute' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:74:in `execute' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/capistrano-rails-1.1.8/lib/capistrano/tasks/assets.rake:69:in `block (6 levels) in <top (required)>' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:93:in `with' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/capistrano-rails-1.1.8/lib/capistrano/tasks/assets.rake:68:in `block (5 levels) in <top (required)>' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:85:in `within' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/capistrano-rails-1.1.8/lib/capistrano/tasks/assets.rake:67:in `block (4 levels) in <top (required)>' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:29:in `instance_exec' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/backends/abstract.rb:29:in `run' /home/sol/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/sshkit-1.11.4/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute' tasks: top => deploy:assets:precompile deploy has failed error: exception while executing deploy@server's-ip: rake exit status: 1 rake stdout: nothing written rake stderr: rake aborted! nomethoderror: undefined method `each' "3w":string /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_adapters/connection_specification.rb:150:in `resolve_all' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/connection_handling.rb:69:in `resolve' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/core.rb:46:in `configurations=' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:117:in `block (2 levels) in <class:railtie>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:28:in `block in on_load' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `each' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/lazy_load_hooks.rb:27:in `on_load' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:116:in `block in <class:railtie>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!' /home/deploy/myapp/releases/20161112203915/config/environment.rb:5:in `<top (required)>' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:328:in `require_environment!' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:457:in `block in run_tasks_blocks' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define' /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/rake-11.3.0/exe/rake:27:in `<top (required)>' /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `load' /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>' tasks: top => environment (see full trace running task --trace) ** invoke deploy:failed (first_time) ** execute deploy:failed   ** deploy failed ** refer log/capistrano.log details. here last 20 lines:   /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.6/lib/active_record/railtie.rb:116:in `block in <class:railtie>'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!'  /home/deploy/myapp/releases/20161112203915/config/environment.rb:5:in `<top (required)>'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:328:in `require_environment!'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:457:in `block in run_tasks_blocks'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define'  /home/deploy/myapp/shared/bundle/ruby/2.3.0/gems/rake-11.3.0/exe/rake:27:in `<top (required)>'  /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `load'  /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>'   debug [dfeef303]   tasks: top => environment   debug [dfeef303]   (see full trace running task --trace) 

my capfile

require 'capistrano/setup' require 'capistrano/deploy' require 'capistrano/bundler' require 'capistrano/spree' require 'capistrano/rails' require 'capistrano/rbenv'  set :rbenv_type, :user # or :system, depends on rbenv setup set :rbenv_ruby, '2.3.1'  dir.glob('lib/capistrano/tasks/*.cap').each { |r| import r } 

deploy.rb:

# config valid capistrano 3.1 lock '3.6.1'  set :application, 'myapp' set :repo_url, 'git@github.com:mygituser/myapp.git'  set :deploy_to, '/home/deploy/myapp' set :linked_files, %w{config/database.yml} set :linked_dirs, %w{bin log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system} set :ssh_options, {:forward_agent => true} set :use_sudo, false    #default_run_options[:shell] = '/bin/bash --login' #default_environment["rails_env"] = 'production'   namespace :deploy    desc 'restart application'   task :restart     on roles(:app), in: :sequence, wait: 5       execute :touch, release_path.join('tmp/restart.txt')     end   end after 'deploy:updated', 'deface:precompile'    after :publishing, 'deploy:restart'   after :finishing, 'deploy:cleanup' end 

anyone encountered error before ? or knows how fix ?

update : database.yml:

default: &default   adapter: mysql2   encoding: utf8   collation: utf8_general_ci   pool: 5   username: myusername   password: mypassword   socket: /var/run/mysqld/mysqld.sock  development:   <<: *default   database: myapp_development   test:   <<: *default   database: myapp_test  production:   <<: *default   database: myapp_production   username: myapp   password: <%= env['myapp_database_password'] %> 

gemfile :

source 'https://rubygems.org'  gem 'rails', '4.2.6' gem 'mysql2', '>= 0.3.13', '< 0.5' gem 'sass-rails', '~> 5.0' gem 'uglifier', '>= 1.3.0' gem 'coffee-rails', '~> 4.1.0' # gem 'therubyracer', platforms: :ruby gem 'jquery-rails' gem 'turbolinks' gem 'jbuilder', '~> 2.0' gem 'sdoc', '~> 0.4.0', group: :doc # gem 'bcrypt', '~> 3.1.7' gem 'spree', '~> 3.1.0' gem 'spree_auth_devise', '~> 3.1.0' gem 'spree_gateway', '~> 3.1.0' gem 'unicorn'  group :development   gem 'web-console', '~>2.3.0'   gem 'byebug' ,'~>9.0.6'   gem 'spring' ,'~>1.2.0'   gem 'debug_inspector' ,'~>0.0.2'   gem 'binding_of_caller' ,'~>0.7.2' end group :development, :production   gem "capistrano", "~> 3.6"   gem 'capistrano-bundler', '~> 1.1.2'   gem 'capistrano-rails', '~> 1.1.1'   gem 'capistrano-rbenv', github: "capistrano/rbenv"   gem 'capistrano-spree', '~> 1.0.0'   gem 'capistrano-passenger', require: false, github: 'capistrano/passenger' end   group :production  gem 'therubyracer'  gem 'execjs' end 

i fixed main error removing database.yml linked files settings , .gitignore , create on server .


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