2014-08-30 57 views

回答

24

假设你的安装失败出于同样的原因作为我的,你会注意到错误日志的状态:

"You have to install development tools first." 

因此,安装xcode并尝试:

xcode-select --install 

按照屏幕上的说明,您应该是金手指。作为参考,这是我尝试时收到的错误

Computer:Folder User$ sudo gem install compass 

Building native extensions. This could take a while... 
ERROR: Error installing compass: 
    ERROR: Failed to build gem native extension. 

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby -r ./siteconf20140904-3376-i1l5f8.rb extconf.rb 
checking for ffi.h... *** extconf.rb failed *** 
Could not create Makefile due to some reason, probably lack of necessary 
libraries and/or headers. Check the mkmf.log file for more details. You may 
need configuration options. 

Provided configuration options: 
    --with-opt-dir 
    --without-opt-dir 
    --with-opt-include 
    --without-opt-include=${opt-dir}/include 
    --with-opt-lib 
    --without-opt-lib=${opt-dir}/lib 
    --with-make-prog 
    --without-make-prog 
    --srcdir=. 
    --curdir 
    --ruby=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby 
    --with-ffi_c-dir 
    --without-ffi_c-dir 
    --with-ffi_c-include 
    --without-ffi_c-include=${ffi_c-dir}/include 
    --with-ffi_c-lib 
    --without-ffi_c-lib=${ffi_c-dir}/ 
    --with-libffi-config 
    --without-libffi-config 
    --with-pkg-config 
    --without-pkg-config 
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:434:in `try_do': The compiler failed to generate an executable file. (RuntimeError) 
You have to install development tools first. 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:549:in `block in try_compile' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:502:in `with_werror' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:549:in `try_compile' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:1044:in `block in have_header' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:895:in `block in checking_for' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:340:in `block (2 levels) in postpone' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:310:in `open' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:340:in `block in postpone' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:310:in `open' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:336:in `postpone' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:894:in `checking_for' 
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:1043:in `have_header' 
    from extconf.rb:16:in `<main>' 

extconf failed, exit code 1 

Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/ffi-1.9.3 for inspection. 
Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-14/2.0.0/ffi-1.9.3/gem_make.out 
+0

感谢邓肯下载正确的伤害。这解决了我遇到的问题。 – 2014-10-19 06:33:03

9

如果您安装了XCODE,则需要打开。 由于操作系统需要添加组件,并且在打开应用程序时添加了这些组件。

再试运行

sudo gem install compass

享受!

+0

这对我来说是thx – lexa 2015-03-07 07:47:46

+0

如果你在更新OSX后遇到这个问题,你需要打开Xcode并接受许可协议 – 2015-11-02 22:00:13

2

得到了同样的问题,也用xcode-select --install但没有帮助。 我从这里https://developer.apple.com/downloads/?name=for%20Xcode

enter image description here

+1

从10.11.1开始使用XCode 7.1,'xcode-select --install'正常工作 – Ricky 2015-10-28 18:22:03

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