Ruby Rubocop安装错误：未能生成gems

我目前在尝试安装Rubocop时遇到了这个问题（我也无法安装nokigiri）：

我尝试过其他的解决方案，但都不奏效。 有人知道我为什么会犯这个错误吗

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Thx

您需要安装ruby 2.5的开发标头，但您没有安装开发环境：

sudo apt get安装ruby2.5-dev

也可以称为

-devel

，具体取决于您的包装系统

~$ sudo gem install rubocop

Building native extensions. This could take a while...
ERROR:  Error installing rubocop:
    ERROR: Failed to build gem native extension.

    current directory: /var/lib/gems/2.5.0/gems/jaro_winkler-1.5.2/ext/jaro_winkler
/usr/bin/ruby2.5 -r ./siteconf20190320-24856-1cn9xqz.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

extconf failed, exit code 1

Gem files will remain installed in /var/lib/gems/2.5.0/gems/jaro_winkler-1.5.2 for inspection.
Results logged to /var/lib/gems/2.5.0/extensions/x86_64-linux/2.5.0/jaro_winkler-1.5.2/gem_make.out