RoR SendGrid配置错误，不允许部署到Heroku;第10章哈特尔

Question

我已经做了配置的该位为SendGrid准确的教程，搜索了很多答案，仍然得到试图推到Heroku的时候这个错误：

NameError: undefined local variable or method `auto' for #<SampleApp::Application:0x007f5c8bdaef78> 

线扔了错误：

:enable_starttls_auto => true 

从配置/ environments.rb全码：

config.action_mailer.raise_delivery_errors = true 
    config.action_mailer.delivery_method = :smtp 
    host = 'gentle-sands-4285.herokuapp.com' 
    config.action_mailer.default_url_options = { host: host } 
    ActionMailer::Base.smtp_settings = { 
    :address  => 'smtp.sendgrid.net', 
    :port   => '587', 
    :authentication => :plain, 
    :user_name  => ENV['SENDGRID_USERNAME'], 
    :password  => ENV['SENDGRID_PASSWORD'], 
    :domain   => 'heroku.com', 
    :enable_starttls_auto => true 
    } 

非常感谢所有帮助，并希望将有助于ŧ o其他人通过教程学习。

Answer 1

而不是将此添加到您的config/environment.rb文件，请尝试添加此文件在您的config/environments /文件夹。下面是我做的：

我将此添加到我的配置/环境/ production.rb：

config.action_mailer.default_url_options = { :host => 'YOUR_APP.herokuapp.com' } 

    config.action_mailer.delivery_method = :smtp 
    config.action_mailer.perform_deliveries = true 
    config.action_mailer.raise_delivery_errors = false 
    config.action_mailer.default :charset => "utf-8" 

    config.action_mailer.smtp_settings = { 
    address: ENV["SMTP_ADDRESS"], 
    port: 587, 
    domain: ENV["EMAIL_DOMAIN"], 
    authentication: "plain", 
    enable_starttls_auto: true, 
    user_name: ENV["EMAIL_USERNAME"], 
    password: ENV["EMAIL_PASSWORD"] 
    } 

这给我的配置/环境/ development.rb：

config.action_mailer.default_url_options = { :host => 'localhost:3000' } 
    config.action_mailer.delivery_method = :smtp 
    config.action_mailer.smtp_settings = { 
    address: ENV["SMTP_ADDRESS"], 
    port: 587, 
    domain: ENV["EMAIL_DOMAIN"], 
    authentication: "plain", 
    enable_starttls_auto: true, 
    user_name: ENV["EMAIL_USERNAME"], 
    password: ENV["EMAIL_PASSWORD"] 
    }