そもそもbootsnapとは？
https://qiita.com/Daniel_Nakano/items/aadeaa7ae4e227b73878
手取り早く、解決したい方へ
console.
gem list bootsnap
// bootsnap (1.4.6, 1.4.4)
と、バージョン差異が出ていたら、
console.
gem uninstall bootsnap --version {指定したい方}
と、必要のないバージョンを削除して終わりです。
そもそも
ローカルで開発する際、Gemfileをいじると思います。
私の場合、
console.
user-no-MacBook-Pro:user$ bundle update
user-no-MacBook-Pro:user$ bundle install --without production
...
Bundle complete! 31 Gemfile dependencies, 108 gems now installed.
Gems in the group production were not installed.
Bundled gems are installed into `./.`
と、ここまで良かったのですが、
console.
user-no-MacBook-Pro:user$ rails s
で、サーバーを起動しようとした際、
console.
Traceback (most recent call last):
24: from bin/rails:3:in `<main>'
23: from bin/rails:3:in `require_relative'
22: from /Users/user/tutorial/config/boot.rb:4:in `<top (required)>'
21: from /Users/user/tutorial/config/boot.rb:4:in `require'
20: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/setup.rb:30:in `<top (required)>'
19: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap.rb:30:in `setup'
18: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/compile_cache.rb:9:in `setup'
17: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:48:in `require_relative'
16: from /Users/user/tutorial/ruby/2.7.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `require'
15: from /Users/user/tutorial/ruby/2.7.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in `load_dependency'
14: from /Users/user/tutorial/ruby/2.7.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `block in require'
13: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
12: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
11: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
10: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
9: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
8: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/compile_cache/iseq.rb:1:in `<top (required)>'
7: from /Users/user/tutorial/ruby/2.7.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `require'
6: from /Users/user/tutorial/ruby/2.7.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in `load_dependency'
5: from /Users/user/tutorial/ruby/2.7.0/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in `block in require'
4: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
3: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
2: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
1: from /Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/user/tutorial/ruby/2.7.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require': no implicit conversion of String into Integer (TypeError)
と、グアっとエラーが出ていました。
何をしてこうなったか
・bundle install前に、元々Gemfileは存在していた。
・その元々のGemfileは、bundle installやらなんやらしていてRailsと繋がっていた。
・新たなGemfileで諸々バージョンなども変更されていてbundle update → bundle installしようとしたら、上記のエラーが出た。
元々のGemfile
source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
ruby '2.7.1'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 6.0.3'
# Use sqlite3 as the database for Active Record
gem 'sqlite3', '~> 1.4'
# Use Puma as the app server
gem 'puma', '~> 4.1'
# Use SCSS for stylesheets
gem 'sass-rails', '>= 6'
# Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
gem 'webpacker', '~> 4.0'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.7'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use Active Model has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Active Storage variant
# gem 'image_processing', '~> 1.2'
# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', '>= 1.4.2', require: false
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
end
group :development do
# Access an interactive console on exception pages or by calling 'console' anywhere in the code.
gem 'web-console', '>= 3.3.0'
gem 'listen', '~> 3.2'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
gem 'spring-watcher-listen', '~> 2.0.0'
end
group :test do
# Adds support for Capybara system testing and selenium driver
gem 'capybara', '>= 2.15'
gem 'selenium-webdriver'
# Easy installation and use of web drivers to run system tests with browsers
gem 'webdrivers'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
新たなGemfile
source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
gem 'rails', '6.0.0'
gem 'aws-sdk-s3', '1.46.0', require: false
gem 'image_processing', '1.9.3'
gem 'mini_magick', '4.9.5'
gem 'active_storage_validations', '0.8.2'
gem 'bcrypt', '3.1.13'
gem 'faker', '2.1.2'
gem 'will_paginate', '3.1.8'
gem 'bootstrap-will_paginate', '1.0.0'
gem 'bootstrap-sass', '3.4.1'
gem 'puma', '3.12.1'
gem 'sass-rails', '5.1.0'
gem 'webpacker', '4.0.7'
gem 'turbolinks', '5.2.0'
gem 'jbuilder', '2.9.1'
gem 'bootsnap', '1.4.4', require: false // ←errorで止まってしまう
group :development, :test do
gem 'sqlite3', '1.4.1'
gem 'byebug', '11.0.1', platforms: [:mri, :mingw, :x64_mingw]
end
group :development do
gem 'web-console', '4.0.1'
gem 'listen', '3.1.5'
gem 'spring', '2.1.0'
gem 'spring-watcher-listen', '2.0.1'
end
group :test do
gem 'capybara', '3.28.0'
gem 'selenium-webdriver', '3.142.4'
gem 'webdrivers', '4.1.2'
gem 'rails-controller-testing', '1.0.4'
gem 'minitest', '5.11.3'
gem 'minitest-reporters', '1.3.8'
gem 'guard', '2.16.2'
gem 'guard-minitest', '2.4.6'
end
group :production do
gem 'pg', '1.1.4'
end
解決策
問題は、bootsnapのバージョン差異にあります。
Gemfile.
// 元々
gem 'bootsnap', '>= 1.4.2', require: false
// 新規
gem 'bootsnap', '1.4.4'
なので、この場合は元々のbootsnapのバージョンを指定し直す事でエラーが解決できます。
Gemfile.
gem 'bootsnap', '>= 1.4.2', require: false
と、再指定して
console.
user-no-MacBook-Pro:user$ bundle update bootsnap
...
Using bootsnap 1.4.6 (was 1.4.4)
...
Bundle updated!
Gems in the group production were not updated.
user-no-MacBook-Pro:user$ rails s
=> Booting Puma
=> Rails 6.0.0 application starting in development
=> Run `rails server --help` for more startup options
となれば、成功です。