使用本機擴展安裝thin（1.5.0）「...錯誤：無法構建gem本機擴展。」

我有一個新項目需要使用瘦，但有一些錯誤。在我的Gemfile中。使用本機擴展安裝thin（1.5.0）「...錯誤：無法構建gem本機擴展。」

gem 'thin'

然後我運行「捆綁安裝」。它顯示：

...... 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. 

     /usr/local/Cellar/ruby/1.9.3-p194/bin/ruby extconf.rb 
checking for main() in -lc... *** 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=/usr/local/Cellar/ruby/1.9.3-p194/bin/ruby 
    --with-thin_parser-dir 
    --without-thin_parser-dir 
    --with-thin_parser-include 
    --without-thin_parser-include=${thin_parser-dir}/include 
    --with-thin_parser-lib 
    --without-thin_parser-lib=${thin_parser-dir}/lib 
    --with-clib 
    --without-clib 
/usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError) 
You have to install development tools first. 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:461:in `try_link0' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:476:in `try_link' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:619:in `try_func' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:845:in `block in have_library' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:254:in `open' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:254:in `open' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:280:in `postpone' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for' 
    from /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:840:in `have_library' 
    from extconf.rb:4:in `<main>' 


Gem files will remain installed in /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/gems/1.9.1/gems/thin-1.5.0 for inspection. 
Results logged to /usr/local/Cellar/ruby/1.9.3-p194/lib/ruby/gems/1.9.1/gems/thin-1.5.0/ext/thin_parser/gem_make.out 
An error occured while installing thin (1.5.0), and Bundler cannot continue. 
Make sure that `gem install thin -v '1.5.0'` succeeds before bundling.

請幫我解決這個問題。我曾經安裝過瘦，但我不知道爲什麼這次失敗。

來源

2012-11-03 Gary Lai

看到此鏈接爲您的解決方案 http://stackoverflow.com/questions/3649252/cannot-install-thin -on-windows/4200880＃4200880 –

我之前試過這種方式。它沒有工作。 –

我發現我的問題。我更新了Xcode，我必須重新安裝命令行工具。 –

寶石安裝薄或寶石安裝薄-v '1.5.0'

來源

2013-08-22 10:03:51

使用本機擴展安裝thin（1.5.0）「...錯誤：無法構建gem本機擴展。」

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