ruby-on-rails - Openshift 上的 Ruby "bundle install"错误

Question

我在 Ruby 和通过远程工具部署应用程序方面还很陌生。我试图在免费的 openshift 帐户上部署我的应用程序。我无法运行应用程序。

当我运行应用程序时出现此错误:

You have already activated rack 1.5.2, but your Gemfile requires rack 1.6.0.
Using bundle exec may solve this. (Gem::LoadError)

所以我尝试运行 bundle exec 但我遇到了另一个错误:

Gemfile syntax error:
/var/lib/openshift/xxxxxxxxxxxxxxxxxxxxxxxxxx/app-root/runtime/repo/Gemfile:24: 
syntax error, unexpected ':', expecting $end
gem 'sdoc', '~> 0.4.0', group: :doc

我认为这可能是因为我在本地使用 Ruby 2.1.5，而 Open shift 默认运行 Ruby 2.0。

我发现了这个话题How can I force a bundle install on OpenShift Online when my RAILS_ENV is set to development? 但我不知道我是否做对了。我什至不知道把这个 pre_build 文件放在哪里。我试着把它放在 /var/lib/openshift/xxxxxxxxxxxxxxxxxxxxxxxxxx/app-root/runtime/repo/.openshift/action_hooks/ 下。但我不确定 runtime 是否是正确的 repo。

编辑 1:

这是我的 Gemfile:

source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.0'
# 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/sstephenson/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.
group: :doc do
    gem 'sdoc', '~> 0.4.0'
end

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Unicorn as the app server
# gem 'unicorn'

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

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug'

  # Access an IRB console on exception pages or by using <%= console %> in views
  gem 'web-console', '~> 2.0'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :jruby]

解决方案:

正如@Rajarshi Das 所说我必须改变

gem 'sdoc', '~> 0.4.0', group: :doc

进入

group: :doc do
    gem 'sdoc', '~> 0.4.0'
end

我不知道为什么。也许是一些语法问题，因为我在本地使用 Ruby 2.1.5，并且不得不在生产环境中使用 2.0.0。之后我不得不运行 gem install rails 即使我使用了 rails quick start。最后我不得不手动添加到 Gemfile gem 'nokogiri'。最后我可以运行 bundle install 并且应用程序开始工作。

Answer 1

您可以通过以下方式简单地解决错误

 group :doc do
    gem 'sdoc', '~> 0.4.0'
 end

针对平台

platforms :jruby, :mingw, :mswin do
  gem 'tzinfo-data'
end

删除 Gemfile.lock as 你已经激活了 rack 1.5.2，但是你的 Gemfile 需要 rack 1.6.0

然后检查bundle install