Ruby 1.9.3Gemfile的一部分#...............gem "pony"gem "bcrypt-ruby", :require => "bcrypt"gem "nokogiri" #..................當我嘗試安裝gems時，出現錯誤alex@ubuntu:~/$ bundleFetching gem metadata from http://rubygems.org/.........Fetching gem metadata from http://rubygems.org/..Enter your password to install the bundled RubyGems to your system: #####............................................................Installing bcrypt-ruby (3.0.1) with native extensions Gem::Installer::ExtensionBuildError: 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:36:in `<main>'Gem files will remain installed in /home/alex/.bundler/tmp/5526/gems/bcrypt-ruby-3.0.1 for inspection.Results logged to /home/alex/.bundler/tmp/5526/gems/bcrypt-ruby-3.0.1/ext/mri/gem_make.outAn error occurred while installing bcrypt-ruby (3.0.1), and Bundler cannot continue.Make sure that `gem install bcrypt-ruby -v '3.0.1'` succeeds before bundling.那我在做sudo gem install bcrypt-ruby -v '3.0.1'Building native extensions. This could take a while...ERROR: Error installing bcrypt-ruby: 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:36:in `<main>'Gem files will remain installed in /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.0.1 for inspection.Results logged to /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.0.1/ext/mri/gem_make.out并得到一個錯誤。我錯過了什么？
3 回答
POPMUISE
TA貢獻1765條經驗 獲得超5個贊
還有類似的問題：
`require'：沒有要加載的文件-mkmf（LoadError）
無法構建gem本機擴展（mkmf（LoadError））-Ubuntu 12.04
通常，解決方案是：
須藤apt-get install ruby-dev
或者，如果這不起作用，則取決于您的ruby版本，運行類似以下內容的代碼：
須藤apt-get install ruby1.9.1-dev
應該解決您的問題。
還是行不通？安裝ruby-dev后，嘗試以下操作：
sudo apt-get安裝make
翻閱古今
TA貢獻1780條經驗 獲得超5個贊
我在嘗試安裝jquery-rails時遇到了同樣的問題。解決方法是
sudo apt-get install zlibc zlib1g zlib1g-dev
慕哥6287543
TA貢獻1831條經驗 獲得超10個贊
對于WSL（Linux的Windows子系統），您需要安裝build-essential軟件包：
sudo apt install build-essential
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