安装bcyrpt-ruby gem bundle时出错
我正在尝试安装Devises gem，运行bundle install然后使用bcrypt-ruby获取此错误，这是我之前没有的。 我能做什么？
Installing bcrypt-ruby (3.0.1) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb creating Makefile make xcrun cc -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE -fno-common -pipe -fno-common -c bcrypt_ext.c Error: No developer directory found at /Developer. Run /usr/bin/xcode-select to update the developer directory path. make: *** [bcrypt_ext.o] Error 1 Gem files will remain installed in /Users/Fryed/.bundler/tmp/25124/gems/bcrypt-ruby-3.0.1 for inspection. Results logged to /Users/Fryed/.bundler/tmp/25124/gems/bcrypt-ruby-3.0.1/ext/mri/gem_make.out An error occured 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.
好的，所以我需要安装bcrypt-ruby ……
wpub-6-65:treebook Fryed$ sudo gem install bcrypt-ruby -v '3.0.1' Password: Building native extensions. This could take a while... ERROR: Error installing bcrypt-ruby: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb creating Makefile make xcrun cc -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE -fno-common -pipe -fno-common -c bcrypt_ext.c Error: No developer directory found at /Developer. Run /usr/bin/xcode-select to update the developer directory path. make: *** [bcrypt_ext.o] Error 1 Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/bcrypt-ruby-3.0.1 for inspection. Results logged to /Library/Ruby/Gems/1.8/gems/bcrypt-ruby-3.0.1/ext/mri/gem_make.out
您尚未安装XCode或您的开发人员目录配置不正确。
如果是第一个，请尝试安装XCode。
如果是第二个，尝试这个（或一些变化，取决于您的XCode目录的位置）
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
gem 'bcrypt-ruby', '~>3.0.1', :github => 'rking/bcrypt-ruby'
rking的bcrypt-ruby的分支注释掉了3.0.1的c编译补丁。 Bcrypt-ruby在一年前解决了这个问题，但不适用于版本3.0.1，这似乎是您的Rails应用程序所需的依赖项。
请参阅github上的问题： https ： //github.com/bundler/bundler/issues/2410