0

我正在运行 Sass、Compass 和 Susy。我升级到最新版本：

bigdecimal (1.2.4)
chunky_png (1.3.3)
compass (1.0.3)
compass-core (1.0.3)
compass-import-once (1.0.5)
ffi (1.9.6 x86-mingw32)
io-console (0.4.2)
json (1.8.1)
minitest (4.7.5)
multi_json (1.10.1)
psych (2.0.5)
rake (10.1.0)
rb-fsevent (0.9.4)
rb-inotify (0.9.5)
rdoc (4.1.0)
sass (3.4.10)
susy (2.2.1)
test-unit (2.1.5.0)

完整的弃用警告是：

DEPRECATION WARNING: Passing null, a non-string value, to unquote()
will be an error in future versions of Sass.

我运行了“compass compile --trace”，但它没有添加任何额外的信息。有谁知道如何去寻找问题所在。据我了解，它可能是 Compass 或 Susy。请指教。

4

3 回答 3

1

正如这个线程中提到的，这确实是一个 Compass 问题，与它的 box-sizing mixin 有关。您将在该页面上找到可能的解决方案。我在这里复制它们：

解决方案1（我已经测试过，警告消失了）：

添加您自己的自定义 mixin，它将覆盖 Compass mixin：

@mixin box-sizing($value) {
    -moz-box-sizing: $value;
         box-sizing: $value;
}

解决方案2：

@mixin box-sizing($box-model: $default-box-sizing) {
  @if type-of($box-model) == string {
    $box-model: unquote($box-model);
  }
  @include prefixed-properties(css3-boxsizing, $box-sizing-support-threshold, (box-sizing: $box-model));
}
于 2015-02-11T17:58:44.620 回答
1

你可以创建一个安全版本的 unquote，所以除非它真的是一个字符串，否则它不会被调用：

@function safe-unquote($param) {
  @return if(type-of($param) == string, unquote($param), $param);
}
于 2015-03-10T13:20:15.830 回答
1

看来问题出在指南针上。接下来是我的调查，使我得出结论。我通过在 Sass 安装中进行搜索找到了显示此警告的位置（在我的情况下为“C:\Ruby21\lib\ruby\gems\2.1.0\gems\sass-3.4.10\lib\sass”）。它是“..\scripts\functions.rb”：

    def unquote(string)
      unless string.is_a?(Sass::Script::Value::String)
        Sass::Util.sass_warn(<<MESSAGE)
DEPRECATION WARNING: Passing #{string.to_sass}, a non-string value, to unquote()
will be an error in future versions of Sass.
MESSAGE
        return string
      end

      return string if string.type == :identifier
      identifier(string.value)
    end
    declare :unquote, [:string]

我在“除非”里面放了一个“puts caller”，看看谁在没有参数的情况下调用这个函数，输出如下：

C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/script/tree/funcall.rb:140:in `_perform'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/script/tree/node.rb:50:in `perform'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:468:in `visit_variable'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (4 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (3 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (2 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:84:in `perform_arguments'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:358:in `block in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `block in with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:346:in `visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:299:in `block (2 levels) in visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:299:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:299:in `block in visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:298:in `visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (4 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (3 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (2 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:84:in `perform_arguments'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:358:in `block in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `block in with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:346:in `visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:299:in `block (2 levels) in visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:299:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:299:in `block in visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:298:in `visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:302:in `visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:302:in `visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:302:in `visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:302:in `visit_if'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (4 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (3 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (2 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:84:in `perform_arguments'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:358:in `block in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `block in with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:346:in `visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:240:in `block (3 levels) in visit_each'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:240:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:240:in `block (2 levels) in visit_each'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:232:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:232:in `block in visit_each'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:231:in `visit_each'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (4 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (3 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (2 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:84:in `perform_arguments'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:358:in `block in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `block in with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:346:in `visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (4 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (3 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:363:in `block (2 levels) in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:84:in `perform_arguments'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:358:in `block in visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `block in with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:98:in `with_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:346:in `visit_mixin'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:430:in `block (2 levels) in visit_rule'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:430:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:430:in `block in visit_rule'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:428:in `visit_rule'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:325:in `block (2 levels) in visit_import'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:325:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:325:in `block in visit_import'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:88:in `block in with_import'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:88:in `with_import'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:322:in `visit_import'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:52:in `map'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:52:in `visit_children'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:167:in `block in visit_children'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:166:in `visit_children'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `block in visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:186:in `visit_root'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:157:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/visitors/perform.rb:8:in `visit'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/root_node.rb:36:in `css_tree'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/tree/root_node.rb:20:in `render'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/engine.rb:268:in `render'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/plugin/compiler.rb:492:in `update_stylesheet'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/plugin/compiler.rb:215:in `block in update_stylesheets'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/plugin/compiler.rb:209:in `each'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/sass-3.4.10/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/lib/compass/sass_compiler.rb:40:in `compile!'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/lib/compass/commands/update_project.rb:49:in `perform'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/lib/compass/commands/base.rb:18:in `execute'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/lib/compass/commands/project_base.rb:19:in `execute'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/lib/compass/exec/sub_command_ui.rb:43:in `perform!'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/lib/compass/exec/sub_command_ui.rb:15:in `run!'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/bin/compass:30:in `block in <top (required)>'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/bin/compass:44:in `call'
C:/Ruby21/lib/ruby/gems/2.1.0/gems/compass-1.0.3/bin/compass:44:in `<top (required)>'
C:/Ruby21/bin/compass:23:in `load'
C:/Ruby21/bin/compass:23:in `<main>'
DEPRECATION WARNING: Passing null, a non-string value, to unquote()
will be an error in future versions of Sass.

如您所见，此堆栈跟踪底部的 Compass 正在执行操作，它调用 Sass。我将把这个问题提交给 Compass。

仅供参考：我将错误发布到 Compass 错误跟踪https://github.com/Compass/compass/issues/1924。

于 2015-01-23T17:22:19.467 回答