ruby on railsでnokogiriのエラーが発生する

Question

ruby railsを用いたポートフォリオ作成をしています。

発生している問題・エラーメッセージ

nokogiriのエラーが発生します恐らくnokogiri/nokogiriというフォルダがないんだろうと思っているのですがどのように対処したらいいのかが調べきれせんでした

	54: from bin/rails:4:in `<main>'
	53: from bin/rails:4:in `require'
	52: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/railties-5.2.4.4/lib/rails/commands.rb:18:in `<top (required)>'
	51: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/railties-5.2.4.4/lib/rails/command.rb:46:in `invoke'
	50: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/railties-5.2.4.4/lib/rails/command/base.rb:69:in `perform'
	49: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
	48: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
	47: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
	46: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/railties-5.2.4.4/lib/rails/commands/server/server_command.rb:142:in `perform'
	45: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/railties-5.2.4.4/lib/rails/commands/server/server_command.rb:142:in `tap'
	44: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/railties-5.2.4.4/lib/rails/commands/server/server_command.rb:145:in `block in perform'
	43: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/railties-5.2.4.4/lib/rails/commands/server/server_command.rb:145:in `require'
	42: from /Users/ideshouhei/Desktop/yourbookshelf/config/application.rb:7:in `<top (required)>'
	41: from /Users/ideshouhei/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler.rb:174:in `require'
	40: from /Users/ideshouhei/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:58:in `require'
	39: from /Users/ideshouhei/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:58:in `each'
	38: from /Users/ideshouhei/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:69:in `block in require'
	37: from /Users/ideshouhei/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:69:in `each'
	36: from /Users/ideshouhei/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:74:in `block (2 levels) in require'
	35: from /Users/ideshouhei/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:74:in `require'
	34: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sass-rails-5.1.0/lib/sass-rails.rb:1:in `<top (required)>'
	33: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sass-rails-5.1.0/lib/sass-rails.rb:1:in `require'
	32: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sass-rails-5.1.0/lib/sass/rails.rb:11:in `<top (required)>'
	31: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sass-rails-5.1.0/lib/sass/rails.rb:11:in `require'
	30: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sass-rails-5.1.0/lib/sass/rails/railtie.rb:3:in `<top (required)>'
	29: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sass-rails-5.1.0/lib/sass/rails/railtie.rb:3:in `require'
	28: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sprockets-rails-3.2.2/lib/sprockets/railtie.rb:7:in `<top (required)>'
	27: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sprockets-rails-3.2.2/lib/sprockets/railtie.rb:7:in `require'
	26: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sprockets-rails-3.2.2/lib/sprockets/rails/context.rb:1:in `<top (required)>'
	25: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/sprockets-rails-3.2.2/lib/sprockets/rails/context.rb:1:in `require'
	24: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers.rb:5:in `<top (required)>'
	23: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers.rb:6:in `<module:ActionView>'
	22: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers.rb:54:in `<module:Helpers>'
	21: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers.rb:54:in `require'
	20: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/form_helper.rb:6:in `<top (required)>'
	19: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/form_helper.rb:6:in `require'
	18: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/form_tag_helper.rb:8:in `<top (required)>'
	17: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/form_tag_helper.rb:10:in `<module:ActionView>'
	16: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/form_tag_helper.rb:16:in `<module:Helpers>'
	15: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/form_tag_helper.rb:20:in `<module:FormTagHelper>'
	14: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/form_tag_helper.rb:20:in `require'
	13: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/text_helper.rb:6:in `<top (required)>'
	12: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/text_helper.rb:8:in `<module:ActionView>'
	11: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/text_helper.rb:31:in `<module:Helpers>'
	10: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/text_helper.rb:34:in `<module:TextHelper>'
	 9: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/text_helper.rb:34:in `require'
	 8: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/sanitize_helper.rb:4:in `<top (required)>'
	 7: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/actionview-5.2.4.4/lib/action_view/helpers/sanitize_helper.rb:4:in `require'
	 6: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/rails-html-sanitizer-1.3.0/lib/rails-html-sanitizer.rb:2:in `<top (required)>'
	 5: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/rails-html-sanitizer-1.3.0/lib/rails-html-sanitizer.rb:2:in `require'
	 4: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/loofah-2.7.0/lib/loofah.rb:4:in `<top (required)>'
	 3: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/loofah-2.7.0/lib/loofah.rb:4:in `require'
	 2: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/nokogiri-1.11.1-x86_64-darwin/lib/nokogiri.rb:11:in `<top (required)>'
	 1: from /Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/nokogiri-1.11.1-x86_64-darwin/lib/nokogiri.rb:32:in `rescue in <top (required)>'
/Users/ideshouhei/Desktop/yourbookshelf/vendor/bundle/ruby/2.6.0/gems/nokogiri-1.11.1-x86_64-darwin/lib/nokogiri.rb:32:in `require': cannot load such file -- nokogiri/nokogiri (LoadError)

nokogiriのインストールアンインストールなどをすると一時的には発生しなくなるのですが時間が立つと再発してしまします

Comments

[winterboum]

Gemfile 載せてください。
何をした時にこのエラーが出たのでしょう

[rails_ruby_web]

'''
source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby '2.6.5'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.2.2'
# Use mysql as the database for Active Record
gem 'mysql2', '>= 0.4.4', '< 0.6.0'
# Use Puma as the app server
gem 'puma', '~> 3.11'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'mini_racer', platforms: :ruby

# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.2'
# 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', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use ActiveModel has_secure_password
gem 'bcrypt', '~> 3.1.7'

# Use ActiveStorage variant
gem 'mini_magick', '~> 4.8'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

gem 'therubyracer'
gem 'libv8'

gem 'kaminari'

gem 'carrierwave'

gem 'nokogiri', '~> 1.11.1'

# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', '>= 1.1.0', 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', '>= 3.0.5', '< 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 chromedriver to run system tests with Chrome
gem 'chromedriver-helper'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
'''
gemfileですrails sを実行する際にこのエラーが発生してしまします

[winterboum]

bundle install は成功していますか

[rails_ruby_web]

いろいろ変更を加えてきたのですがinstallは成功しています

Answer 1

ほぼあなたと同じバージョンでrailsアプリを作ってみましたが問題なく起動しました。

=> Booting Puma
=> Rails 5.2.4.4 application starting in development
=> Run rails server -h for more startup options
Puma starting in single mode...

• Version 3.12.6 (ruby 2.6.6-p146), codename: Llamas in Pajamas
• Min threads: 5, max threads: 5
• Environment: development
• Listening on tcp://localhost:3000

Use Ctrl-C to stop

いろいろ変更を加えてきたのですがinstallは成功しています

成功していません。環境か手順を見直してください。