Rails 生产：Bundle 被锁定为 rake

Question

我刚刚使用wicked_pdf gem 将导出到PDF 添加到我的应用程序中。它在我的开发机器上运行良好，但在生产服务器上不断抛出以下错误：

I, [2016-12-01T03:40:46.110058 #2857]  INFO -- :   Rendered reports/summary_of_reports.pdf.erb within layouts/pdf.html (24.3ms)
I, [2016-12-01T03:40:46.779291 #2857]  INFO -- : Completed 500 Internal Server Error in 698ms (ActiveRecord: 5.3ms)
F, [2016-12-01T03:40:46.780418 #2857] FATAL -- :
RuntimeError (Failed to execute:
["/home/ams/itdc_accounts/shared/bundle/ruby/2.3.0/bin/wkhtmltopdf", "-q", "file:////tmp/wicked_pdf20161201-2857-1deugco.html", "/tmp/wicked_pdf_generated_file20161201-2857-1snx0mz.pdf"]
Error: PDF could not be generated!
 Command Error: /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/definition.rb:179:in `rescue in specs': Your bundle is locked to rake (11.3.0), but that version could not be found in any of the sources listed in your Gemfile. If you haven't changed sources, that means the author of rake (11.3.0) has removed it. You'll need to update your bundle to a different version of rake (11.3.0) that hasn't been removed in order to install. (Bundler::GemNotFound)
        from /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/definition.rb:173:in `specs'
        from /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/definition.rb:233:in `specs_for'
        from /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/definition.rb:222:in `requested_specs'
        from /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:118:in `block in definition_method'
        from /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:19:in `setup'
        from /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler.rb:99:in `setup'
        from /home/ams/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/setup.rb:20:in `<top (required)>'
        from /usr/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
        from /usr/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
):
  app/controllers/reports_controller.rb:19:in `block (2 levels) in summary_of_reports'
  app/controllers/reports_controller.rb:15:in `summary_of_reports'

问题是我已经尝试使用 Rails 控制台在生产服务器上生成示例 PDF 并且它可以工作，所以我真的很困惑为什么这不起作用。

#view
<%= link_to icon("file-pdf-o") + " Export as PDF", request.parameters.merge({format: :pdf}), target: "_blank" %>

#controller
def summary_of_reports
  if params[:at].present?
    @account_type = AccountType.find_by_id(params[:at])
    @accounts_total = Account.where(account_type: params[:at]).joins(:user).order('users.last_name')
    @accounts = Account.where(account_type: params[:at]).joins(:user).order('users.last_name').paginate(page: params[:page], per_page: 30)
  end

  respond_to do |format|
    format.html
    format.csv { send_data Account.to_csv(@accounts_total), filename: "summary_of_reports_#{Time.now.strftime("%^b-%d-%Y-%H-%M")}.csv" }
    format.pdf do
      render pdf: "summary_of_reports_#{Time.now.strftime("%^b-%d-%Y-%H-%M")}",
        template: "reports/summary_of_reports.pdf.erb",
        locals: {
          accounts: @accounts_total,
          account_type: @account_type
        }
    end
  end
end

我已经尝试卸载并重新安装 rake 和 bundler gems，以及在服务器端运行 bundle install 和 bundle update 都没有用。

更新： 添加了 Gemfile

source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.6'
# Use mysql as the database for Active Record
gem 'mysql2', '>= 0.3.13', '< 0.5'
# 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

# 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'
  gem 'rspec-rails'
  gem 'factory_girl_rails'
  gem 'capybara'
  gem 'database_cleaner'
  gem 'selenium-webdriver'
  gem 'ffaker'
  gem 'shoulda-matchers'
  gem 'shoulda-callback-matchers'
  gem 'simplecov', :require => false

  gem 'capistrano'
  gem 'capistrano-bundler'
  gem 'capistrano-rails'
  gem 'capistrano-rbenv'
  gem 'capistrano-passenger'
  gem 'rails-erd'
end

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

  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'thin'
end

gem 'simple_form'
gem 'momentjs-rails', :github => 'derekprior/momentjs-rails'
gem 'datetimepicker-rails', github: 'zpaulovics/datetimepicker-rails', branch: 'master', submodules: true

gem 'font-awesome-sass'
gem 'bootstrap'
# gem 'bootstrap-sass'
gem 'google-webfonts-rails'
gem 'will_paginate'
gem 'will_paginate-bootstrap4'

gem 'devise'
gem 'devise_invitable'
gem 'omniauth'
gem 'omniauth-google-oauth2'
gem 'figaro'

gem 'searchkick'

gem 'wicked_pdf'
gem 'wkhtmltopdf-binary'

更新 2：尝试卸载并重新安装所有 gem 文件，仍然不行。

Answer 1

wkhtmltopdf 可执行文件看起来像是一个 rbenv binstub，它会启动您的捆绑环境，但可能依赖于 rake。

尝试添加

gem 'rake', '11.3.0'

致您的Gemfile。

如果这不起作用，请尝试创建一个 config/initializers/wicked_pdf.rb 初始化程序，其路径指定为您的生产服务器上的实际 wkhtmltopdf 二进制文件（当您在命令行上执行 which wkhtmltopdf 时显示的那个） .