安装bcyrpt-ruby gem捆绑包时出错

Question

我正在尝试安装Devises gem，运行bundle install ，然后使用bcrypt-ruby遇到此错误，而我以前从未遇到过。 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

Answer 1

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，请尝试执行此操作（或进行一些更改，具体取决于您的XCode目录所在的位置）

sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer

Answer 2

gem 'bcrypt-ruby', '~>3.0.1', :github => 'rking/bcrypt-ruby'

rking的bcrypt-ruby分支注释掉了3.0.1版的C编译补丁失败。 Bcrypt-ruby在一年前解决了此问题，但不适用于3.0.1版本，这似乎是Rails应用程序需要的依赖项。

在github上查看问题： https : //github.com/bundler/bundler/issues/2410