Я выполнил следующую команду и получил `` require ': не могу загрузить такой файл - mkmf `сообщение об ошибке
$ sudo gem install sensu-plugin --no-rdoc --no-ri Fetching: json-1.8.2.gem (100%) Building native extensions. This could take a while... ERROR: Error installing sensu-plugin: ERROR: Failed to build gem native extension. /usr/bin/ruby1.9.1 extconf.rb /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError) from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from extconf.rb:1:in `<main>' Как я могу это исправить?
ОС убунут 14.04
In all currently supported version of Ubuntu (including Ubuntu 14.04), open the terminal and type:
sudo apt-get install ruby-dev This package contains the header files and the mkmf library, necessary to make an extension library for Ruby. It is also required to build many gems.