Jekyll/Ruby Kramdown缺少依赖项

Question

我正在努力建立我的第一个jekyll博客。我正在尝试运行jekyll服务器，但在终端中键入它时，我得到了错误消息：

You are missing a library required for Markdown. Please run:
$ [sudo] gem install kramdown
Conversion error: Jekyll::Converters::Markdown encountered an error while converting '_posts/2013-08-15-immunize-canada-app.md/#excerpt':
                Missing dependency: kramdown
         ERROR: YOUR SITE COULD NOT BE BUILT:
                ------------------------------------
                Missing dependency: kramdown

我已经按照它的要求安装了kramdown，但仍然收到这个错误。我在另一篇文章中发现将gem 'kramdown‘添加到Gemfile中，但仍然不起作用。我是Ruby/Jekyll的新手，所以如果有任何帮助，我将非常感激！

Answer 1

我在我的环境中解决了同样的问题：

$>gem uninstall kramdown

Select gem to uninstall:
 1. kramdown-1.5.0
 2. kramdown-1.9.0
 3. All versions
> 3

You have requested to uninstall the gem:
        kramdown-1.5.0

github-pages-39 depends on kramdown (= 1.5.0)
If you remove this gem, these dependencies will not be met.
Continue with Uninstall? [yN]  y
Successfully uninstalled kramdown-1.5.0

You have requested to uninstall the gem:
        kramdown-1.9.0

jekyll-3.0.1 depends on kramdown (~> 1.3)
jekyll-2.4.0 depends on kramdown (~> 1.3)
markdown-1.2.0 depends on kramdown (>= 1.5.0)
test-unit-3.1.5 depends on kramdown (>= 0, development)
If you remove this gem, these dependencies will not be met.
Continue with Uninstall? [yN]  y
Remove executables:
        kramdown

in addition to the gem? [Yn]  y
Removing kramdown
Successfully uninstalled kramdown-1.9.0

$>gem install kramdown
Fetching: kramdown-1.9.0.gem (100%)
Successfully installed kramdown-1.9.0
Parsing documentation for kramdown-1.9.0
Installing ri documentation for kramdown-1.9.0
Done installing documentation for kramdown after 2 seconds
1 gem installed

问题是由两个版本的kramdown引起的。

因此，先对其进行uninstall，然后再对其进行install。

希望这能有所帮助。