I am trying to deploy my Ruby on Rails application onto the DigitalOcean server, but I got
LoadError: cannot load such file -- nokogiri
when I ran
cap production deploy:initial
from my local machine. I never required Nokogiri in my Gemfile or installed it for my application.
This is the error:
This is my gemfile:
source 'https://rubygems.org'
ruby "2.0.0"
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.3'
# Use sqlite3 as the database for Active Record
#gem 'sqlite3'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc
group :development, :test do
gem 'mysql2', '~> 0.3.13'
gem 'byebug'
gem 'web-console', '~> 2.0'
gem "rails-erd"
gem 'capistrano', require: false
gem 'capistrano-rvm', require: false
gem 'capistrano-rails', require: false
gem 'capistrano-bundler', require: false
#gem 'capistrano-passenger', require: false
gem 'capistrano3-puma', require: false
end
group :production do
gem 'rails_12factor', '0.0.2'
gem 'thin'
gem 'puma'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
#bootstrap
gem 'bootstrap-sass', '~> 3.3.4.1'
gem "better_errors"
#for user authentication
gem "devise"
gem 'rails_admin', '~> 0.6.8'
gem 'jquery-ui-rails'
Nokogiri is a dependency of one of the gems you're using.
The most common cause for your problem is using different OSes in development and in production, such as developing in Windows and deploying to Linux.
The simplest, but not the best, fix is to edit your Gemfile.lock and remove all -x86-mingw32
references from the gem versions. For instance, replace
nokogiri (1.6.6.2-x86-mingw32)
with
nokogiri (1.6.6.2)
Nokogiri will not be the only gem version you'll have to edit manually, so search for other gems with -x86-mingw32
in their versions. There will also be at least pg
. It does not cause an error during deploy, it simply does not install if your Gemfile.lock was generated on Windows.
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