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在我的 Rails 项目中,我正在使用haml_assets gem

文件内容registration.jst.eco.haml

= form_for :contact, url: "javascript_not_working", html: {:class => :edit_contact, :method => :put} do |f|
  = f.label :name, "Name"
  = f.text_field :name, class: 'text required', value: '{{name}}'

当我运行 jasmine 测试时,我在浏览器中遇到了这个错误:

TypeError: Object true has no method 'replace'
  (in .../app/assets/templates/users/registration.jst.eco.haml)

在控制台中:

ERROR: compiling .../app/assets/templates/users/registration.jst.eco.haml 
  RAISED undefined method `rails_safe_buffer_class' for Haml::Util:Module

我什至只尝试了助手:

= form_for :contact

和错误相同

如何修复此错误?谢谢

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