我运行捆绑包更新是为了更新我遇到问题的一些gem，现在我在启动控制台时遇到了一个错误。下面列出了错误。我还是个新手（在业余时间玩它），所以这很可能是微不足道的事情。
错误：
/Users/chance/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.7/lib/rails/railtie/configuration.rb:77:in `method_missing': undefined method `action_mailer' for #<Rails::Application::Configuration:0x000001020fc280> (NoMethodError)
from /Users/chance/Sites/AppName/config/application.rb:35:in `<class:Application>'
from /Users/chance/Sites/AppName/config/application.rb:10:in `<module:AppName>'
from /Users/chance/Sites/AppName/config/application.rb:9:in `<top (required)>'
from /Users/chance/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.7/lib/rails/commands.rb:21:in `require'
from /Users/chance/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.7/lib/rails/commands.rb:21:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
application.rb[编辑出主机和密码]
require File.expand_path('../boot', __FILE__)
require 'rails/all'
# If you have a Gemfile, require the gems listed there, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(:default, Rails.env) if defined?(Bundler)
module AppName
class Application < Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
# Custom directories with classes and modules you want to be autoloadable.
# config.autoload_paths += %W(#{config.root}/extras)
# Only load the plugins named here, in the order given (default is alphabetical).
# :all can be used as a placeholder for all plugins not explicitly named.
# config.plugins = [ :exception_notification, :ssl_requirement, :all ]
# Activate observers that should always be running.
# config.active_record.observers = :cacher, :garbage_collector, :forum_observer
# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
#config.time_zone = 'Central Time (US & Canada)'
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
# config.i18n.default_locale = :de
# JavaScript files you want as :defaults (application.js is always included).
config.action_view.javascript_expansions[:defaults] = %w(jquery rails)
config.action_mailer.default_url_options = {
:address => "smtp.gmail.com",
:port => 587,
:domain => "host.net",
:user_name => "test@host.net",
:password => "******",
:authentication => "plain"
# :enable_starttls_auto => true
}
config.action_mailer.default_url_options = { :host => 'localhost:3000' }
# Configure the default encoding used in templates for Ruby 1.9.
config.encoding = "utf-8"
# Configure sensitive parameters which will be filtered from the log file.
config.filter_parameters += [:password]
end
end
不建议运行bundle update一次性更新所有gem。您应该尝试运行bundle update <gemname>来逐个更新gems。在后一种情况下，你至少知道由于这次更新，事情发生了变化。
现在，在Gemfile和Gemfile.lock上恢复到旧版本（我希望您使用的是版本控制），并运行捆绑包安装，然后如上所述重新启动。
请参阅代码中的以下行
config.action_mailer.default_url_options = {
:address => "smtp.gmail.com",
:port => 587,
:domain => "host.net",
:user_name => "test@host.net",
:password => "******",
:authentication => "plain"
# :enable_starttls_auto => true
}
你把代码config.action_mailer.smtp_settings放错地方了
如果轨道3 config.action_mailer.server_settings