Rubocop 安装错误：无法构建 gems

Question

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

~$ 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

我尝试了其他解决方案，但都没有奏效。 有谁知道我为什么会收到这个错误？

谢谢

Answer 1

你需要为 ruby​​ 2.5 安装开发头文件，你没有安装开发环境：

sudo apt-get install ruby2.5-dev

也可能称为-devel，具体取决于您的包装系统。