无法运行 rails 服务器 -- `require`main`

Question

在mac上，运行时：rails server，出现如下错误：

/Users/KimiebiAkah/Desktop/Rails_App/feastonline/config/application.rb:12:in `require': cannot load such file -- iconv (LoadError)
        from /Users/KimiebiAkah/Desktop/Rails_App/feastonline/config/application.rb:12:in `<top (required)>'
        from /Users/KimiebiAkah/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `require'
        from /Users/KimiebiAkah/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `block in server'
        from /Users/KimiebiAkah/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap'
        from /Users/KimiebiAkah/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server'
        from /Users/KimiebiAkah/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        from /Users/KimiebiAkah/.rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

我不知道应用程序出了什么问题。 如何缓解？

宝石文件：

source 'http://rubygems.org'
ruby '2.3.0'  # '1.9.3'

gem 'rails', '4.2.6'
gem 'mysql2', '0.4.4'
gem 'bootstrap-sass', '2.3.2.0'
gem 'bcrypt-ruby', '3.1.2'
gem 'faker', '1.1.2'
gem 'will_paginate', '3.0.4'
gem 'bootstrap-will_paginate', '0.0.9'
gem 'geocoder', '1.1.8'
gem 'nested_form', '0.3.2'
gem 'utf8-cleaner', '0.0.6'
gem 'sprockets', '2.11.0'
gem 'json', '1.8.3'
gem 'ffi'

gem 'chosen-rails', '1.0.1'
gem 'compass-rails', github: 'Compass/compass-rails'

# For image uploads
gem 'carrierwave', '0.9.0'

# For uploading CSV
gem 'roo', '1.13.2'

# DataTables
gem 'jquery-datatables-rails', '2.2.3' #  git: 'git://github.com/rweng/jquery-datatables-rails.git'
gem 'jquery-ui-rails', '5.0.2'

# Editing in line:
gem 'best_in_place', '3.0.3'

# Passing data from controller to coffeescript
gem 'gon', '5.2.3'

gem 'progress_bar', '1.0.0'

# Calendar Date and Validation
gem 'bootstrap-datepicker-rails'

# For Google Maps overlays
gem 'gmaps4rails', '~> 2.1.2'
gem 'underscore-rails', '~> 1.7.0'

group :development, :test do
  gem 'rspec-rails', '2.13.1'
  gem 'guard-rspec', '2.5.0'
  gem 'spork-rails', '4.0.0'
  gem 'childprocess', '0.3.9'
  gem 'guard-spork', '1.5.0'
end

group :test do
  gem 'selenium-webdriver', '2.35.1'
  gem 'capybara', '2.1.0'
  gem 'factory_girl_rails', '4.2.1'
end

gem 'sass-rails', '4.0.1'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.1.0'
gem 'jquery-rails', '3.1.2'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'

group :doc do
  gem 'sdoc', '0.3.20', require: false
end

gem 'rails_12factor', '0.0.3'

Answer 1

显示iconv 不存在。我猜你错过了gem "iconv", "~> 1.0.3"。

将此gem "iconv", "~> 1.0.3" 添加到您的Gemfile 并运行bundle install