无法安装 gem - 无法构建 gem 本机扩展 - 无法加载此类文件 - mkmf (LoadError) [英] Unable to install gem - Failed to build gem native extension - cannot load such file -- mkmf (LoadError)

问题描述

红宝石 1.9.3

Gemfile 部分

#...............
gem "pony"
gem "bcrypt-ruby", :require => "bcrypt"
gem "nokogiri" 
#..................

当我尝试安装 gems 时，出现错误

When I'm trying to install gems, I get an error

alex@ubuntu:~/$ bundle
Fetching 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.out
An 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.

那我就这样做

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

并得到一个错误.

我错过了什么?

推荐答案

有类似问题:

• `require':没有要加载的文件 -- mkmf (加载错误)
• 构建失败gem 本机扩展 (mkmf (LoadError)) - Ubuntu 12.04

通常的解决方法是:

sudo apt-get install ruby​​-dev

sudo apt-get install ruby-dev

或者，如果这不起作用，取决于您的 ruby​​ 版本，运行如下:

sudo apt-get install ruby​​1.9.1-dev

sudo apt-get install ruby1.9.1-dev

应该可以解决您的问题.

Should fix your problem.

还是不行?安装 ruby​​-dev 后尝试以下操作:

Still not working? Try the following after installing ruby-dev:

sudo apt-get install make

sudo apt-get install make

这篇关于无法安装 gem - 无法构建 gem 本机扩展 - 无法加载此类文件 - mkmf (LoadError)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！