エラー内容
h2tomo:everydayrails-rspec-2017 tomohiro$ bin/rails g rspec:model user
/Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/configuration.rb:37:in `pwd': No such file or directory - getcwd (Errno::ENOENT)
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/configuration.rb:37:in `project_root_path'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/configuration.rb:28:in `application_root_path'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application.rb:258:in `loaded_application_features'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application.rb:105:in `ensure in preload'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application.rb:112:in `preload'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application.rb:143:in `serve'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application.rb:131:in `block in run'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application.rb:125:in `loop'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application.rb:125:in `run'
from /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib/spring/application/boot.rb:19:in `<top (required)>'
from /Users/tomohiro/.rbenv/versions/2.5.1/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
from /Users/tomohiro/.rbenv/versions/2.5.1/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
from -e:1:in `<main>'
解決策
ps ax | grep spring でbackgroundで起動中のものを確認し、すべてのプロセスをkillで削除
h2tomo:everydayrails-rspec-2017 tomohiro$ ps ax | grep spring
3366 ?? Ss 0:05.17 spring app | my_app | started 20 hours ago | development mode
48060 ?? Ss 0:00.11 ruby -I /Users/tomohiro/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.1/lib -I /Users/tomohiro/work/everydayrails-rspec-2017/vendor/cache/gems/spring-2.0.1/lib -e require 'spring/application/boot'
1436 s001 S 0:00.52 spring server | my_app | started 43 hours ago
27731 s001 S 0:00.34 spring server | everydayrails-rspec-2017 | started 1 hour ago
48111 s001 S+ 0:00.00 grep spring
h2tomo:everydayrails-rspec-2017 tomohiro$ kill -9 3366
h2tomo:everydayrails-rspec-2017 tomohiro$ kill -9 48060
h2tomo:everydayrails-rspec-2017 tomohiro$ kill -9 1436
h2tomo:everydayrails-rspec-2017 tomohiro$ kill -9 27731
h2tomo:everydayrails-rspec-2017 tomohiro$ ps ax | grep spring
48133 s001 S+ 0:00.00 grep spring
h2tomo:everydayrails-rspec-2017 tomohiro$ bin/rails g rspec:model user
Running via Spring preloader in process 48164
create spec/models/user_spec.rb