错误的错误:未定义的方法`有？' for Sass :: Util:Module

Question

加载网页时,我收到Phusion发出的以下错误:

There was an error while trying to load the gem 'compass-rails'.
Gem Load Error is: undefined method `has?' for Sass::Util:Module
Did you mean?  hash
               Hash
Backtrace for gem load error is:
/Volumes/Data/htdocs/zetcho/vendor/bundle/gems/compass-0.12.2/lib/compass/sass_extensions/functions/urls.rb:5:in `has?'

指定位置的代码是:

module Compass::SassExtensions::Functions::Urls


def self.has?(base, instance_method)
  Sass::Util.has?(:instance_method, base, instance_method)
end

我的gem文件包含:

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.1.2'

# Use mysql as the database for Active Record
gem 'mysql2', '~> 0.3.18'

# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'

# Use Compass for stylesheets
gem 'compass-rails'

# Use the Compass extension susy
gem "sprockets"
gem 'susy'

我刚刚使用Rails 5.1.2和ruby 2.3.1创建了Ruby on Rails站点.我有一个更老的网站,与宝石一起工作正常.我是否错过了整体安装中的一个步骤,或者这是指南针导轨的错误？

我尝试添加控制器时遇到了同样的错误:

rails generate controller home index

Answer 1

经过更多的挖掘,我发现了类似的问题.我通过将gem文件更改为:

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

然后:

rm gemfile.lock
bundle

Answer 2

看来这个问题可以在 中找到compass-rails 2.0.0。该版本3.0.2似乎解决了这个问题。所以一个可能的解决方案是：

# Gemfile
gem 'compass-rails', '~> 3.0.2'

然后bundle update compass-rails

这避免了以 compass-rails git master 分支为目标而支持实际发布。