「rails c」は動くけど、「rails s」が動かない現象に遭遇したので、メモしておきます。
先に結論。原因は下記でした。本番環境構築時にローカルで試しに叩いた。
% bundle config set --local without 'test development'
下記と違って、設定が残ってしまうので、解除しないといけない。
% bundle install --without test development
現象
% rails s
=> Booting Puma
=> Rails 6.1.6 application starting in development
=> Run `bin/rails server --help` for more startup options
Exiting
bin/rails:7: warning: already initialized constant APP_PATH
/Users/xxxx/workspace/rails-app-origin/bin/rails:7: warning: previous definition of APP_PATH was here
The most common rails commands are:
generate Generate new code (short-cut alias: "g")
console Start the Rails console (short-cut alias: "c")
server Start the Rails server (short-cut alias: "s")
test Run tests except system tests (short-cut alias: "t")
test:system Run system tests
dbconsole Start a console for the database specified in config/database.yml
(short-cut alias: "db")
new Create a new Rails application. "rails new my_app" creates a
new application called MyApp in "./my_app"
All commands can be run with -h (or --help) for more information.
In addition to those commands, there are:
about
action_mailbox:ingress:exim
action_mailbox:ingress:postfix
＜省略＞
webpacker:yarn_install
yarn:install
zeitwerk:check
最初に試したのは（違ったけど）
「warning: previous definition of APP_PATH was here」の対応をしてみた。
検索すると「rails:update:bin」すると治るとの情報があった。
% rails rails:update:bin rails aborted! Don't know how to build task 'rails:update:bin' (See the list of available tasks with `rails --tasks`) Did you mean? app:update:bin /Users/xxxx/workspace/rails-app-origin/bin/rails:9:in `' /Users/xxxx/workspace/rails-app-origin/bin/spring:15:in ` ' (See full trace by running task with --trace)
「app:update:bin」じゃないかと言われる。
% rails app:update:bin
exist bin
conflict bin/rails
Overwrite /Users/xxxx/workspace/rails-app-origin/bin/rails? (enter "h" for help) [Ynaqdhm]
force bin/rails
conflict bin/rake
Overwrite /Users/xxxx/workspace/rails-app-origin/bin/rake? (enter "h" for help) [Ynaqdhm]
force bin/rake
conflict bin/setup
Overwrite /Users/xxxx/workspace/rails-app-origin/bin/setup? (enter "h" for help) [Ynaqdhm]
force bin/setup
conflict bin/spring
Overwrite /Users/xxxx/workspace/rails-app-origin/bin/spring? (enter "h" for help) [Ynaqdhm]
force bin/spring
conflict bin/yarn
Overwrite /Users/xxxx/workspace/rails-app-origin/bin/yarn? (enter "h" for help) [Ynaqdhm]
force bin/yarn
% rails s => Booting Puma => Rails 6.1.4.1 application starting in development => Run `bin/rails server --help` for more startup options Exiting /Users/xxxx/.rvm/gems/ruby-3.0.0/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require': cannot load such file -- spring/watcher (LoadError)
動かない。
Gemfileを確認
group :development do gem 'spring' gem 'spring-watcher-listen', '~> 2.0.0'
developmentじゃないと使えない。
bundle config
確認
% bundle config Settings are listed in order of priority. The top value will be used. –delete Set for the current user (/Users/xxxx/.bundle/config): "without" without Set for your local app (/Users/xxxx/workspace/rails-app-origin/.bundle/config): [:test, :development]
「–without test development」が設定されている。
解除
% bundle config --delete without
再確認
% bundle config Settings are listed in order of priority. The top value will be used. –delete Set for the current user (/Users/xxxx/.bundle/config): "without"
「–without」が無くなった。
「rails s」も動くようになりました。
最新化
再度「app:update:bin」を実行（変更なし）
% rails app:update:bin
exist bin
identical bin/rails
identical bin/rake
identical bin/setup
identical bin/spring
identical bin/yarn
