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NoMethodError: undefined method ascii_only? - 邮件2.5.4和Rails 4.0出现错误

rubyruby-on-rails-4rubygems
6

当我尝试使用mail 2.5.4 / rails 4.0.0 / ruby 1.9.3-p125配置发送邮件时，出现了以下错误信息：

SubscriptionMailer.send_email(Subscription.last).deliver
  Subscription Load (0.6ms)  SELECT `subscriptions`.* FROM `subscriptions` ORDER BY `subscriptions`.`id` DESC LIMIT 1
  User Load (0.3ms)  SELECT `users`.* FROM `users` WHERE `users`.`id` = 1 ORDER BY `users`.`id` ASC LIMIT 1
  Rendered subscription_mailer/send_email.text.erb (0.6ms)
  Rendered subscription_mailer/send_email.html.haml (5.7ms)
NoMethodError: undefined method `ascii_only?' for nil:NilClass
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/encodings.rb:68:in `param_encode'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/fields/content_type_field.rb:95:in `block in stringify'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/fields/content_type_field.rb:95:in `each'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/fields/content_type_field.rb:95:in `map'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/fields/content_type_field.rb:95:in `stringify'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/fields/content_type_field.rb:88:in `value'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/fields/content_type_field.rb:28:in `parse'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/fields/content_type_field.rb:24:in `initialize'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/field.rb:203:in `new'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/field.rb:203:in `new_field'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/field.rb:192:in `create_field'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/field.rb:149:in `update'
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/header.rb:170:in `[]='
  from /opt/blog/vendor/ruby/1.9.1/gems/mail-2.5.4/lib/mail/message.rb:588:in `content_type='
  from /opt/blog/vendor/ruby/1.9.1/gems/actionmailer-4.0.0/lib/action_mailer/base.rb:695:in `mail'
  from /opt/blog/app/mailers/subscription_mailer.rb:19:in `send_email'
... 8 levels...
  from /opt/blog/vendor/ruby/1.9.1/gems/actionmailer-4.0.0/lib/action_mailer/base.rb:497:in `initialize'
  from /opt/blog/vendor/ruby/1.9.1/gems/actionmailer-4.0.0/lib/action_mailer/base.rb:480:in `new'
  from /opt/blog/vendor/ruby/1.9.1/gems/actionmailer-4.0.0/lib/action_mailer/base.rb:480:in `method_missing'
  from (irb):4
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/commands/console.rb:90:in `start'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/commands/console.rb:9:in `start'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:64:in `<top (required)>'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/app_rails_loader.rb:43:in `require'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/app_rails_loader.rb:43:in `block in exec_app_rails'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/app_rails_loader.rb:32:in `loop'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/app_rails_loader.rb:32:in `exec_app_rails'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/lib/rails/cli.rb:6:in `<top (required)>'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/bin/rails:9:in `require'
  from /opt/blog/vendor/ruby/1.9.1/gems/railties-4.0.0/bin/rails:9:in `<top (required)>'
  from bin/rails:16:in `load'
  from bin/rails:16:in `<main>'1.9.1 :005 >
1
我怀疑您的电子邮件配置中的某个字段为空。如果您能够粘贴发件程序类和您的发件程序配置，那将很有帮助。 - Jesper
4个回答
8

我之前遇到了一个类似的问题，当发送附件时出现了错误。

我需要将 attachments[:report] 改成 attachments['report']

旧代码：

def email_report(email, report) attachments[:report] = File.read(report) mail(to: email, subject: 'report') end

新代码：

def email_report(email, report) attachments['report'] = File.read(report) mail(to: email, subject: 'report') end

我猜想你遇到的问题也是类似的。

这里有类似的问题，请帮忙 - http://stackoverflow.com/questions/29441305/cannot-create-firefox-browser-with-watir-webdriver - stack1
5

我遇到了这个问题，是因为我在“to”字段中设置了一个用户实例，而不是用户的电子邮件值。

我曾经遇到过类似的问题，这是因为地址并不是实际的电子邮件地址。 - spartikus
1
当我将activestorage附加文件作为邮件附件发送时，遇到了这个错误消息。问题出在文件名上：
files.each do |file|
  # this next line does not work, throws NoMethodError: undefined method ascii_only?
  filename = file.filename  
  attachments[filename] = {
    mime_type: file.blob.content_type,
    content: file.blob.download
  }
end

当我显式地将文件名转换为字符串时，错误消失了：
files.each do |file|
  # convert to string and it does work!
  filename = file.filename.to_s
  attachments[filename] = {
    mime_type: file.blob.content_type,
    content: file.blob.download
  }
end
感谢您花时间发布这篇文章，非常有帮助！ - karns
0

我遇到了同样的问题。 我有以下内容：

include HTTParty

并将其更改为

require 'httparty'

这对我有用。

希望能帮到你。

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