当我进行捆绑安装时，我收到了kgio gem的gem安装错误
我在我的Gemfile中添加了独角兽，之后当我进行捆绑安装时，我收到了这个错误
em::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/bin/ruby extconf.rb checking for CLOCK_MONOTONIC in time.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 --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=/Users/adim86/.rvm/rubies/ruby-1.9.3-p0/bin/ruby /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/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 /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:491:in `block in try_compile' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:443:in `with_werror' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:491:in `try_compile' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:686:in `macro_defined?' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:822:in `block in have_macro' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:254:in `open' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:254:in `open' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:280:in `postpone' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for' from /Users/adim86/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:821:in `have_macro' from extconf.rb:5:in `' Gem files will remain installed in /Users/adim86/.rvm/gems/ruby-1.9.3-p0/gems/kgio-2.7.4 for inspection. Results logged to /Users/adim86/.rvm/gems/ruby-1.9.3-p0/gems/kgio-2.7.4/ext/kgio/gem_make.out An error occured while installing kgio (2.7.4), and Bundler cannot continue. Make sure that `gem install kgio -v '2.7.4'` succeeds before bundling 我的gem文件看起来像这样。 我已经尝试将unicorn添加到生产块中，但我仍然得到相同的错误。 我也删除了独角兽，我仍然得到相同的错误也尝试了捆绑更新无济于事：
source 'https://rubygems.org' gem 'rails', '3.2.3' gem 'devise' gem 'haml-rails' gem 'omniauth' gem 'omniauth-twitter' gem 'omniauth-facebook' gem 'twitter' gem 'fb_graph' gem 'json' gem 'json_pure' gem 'simple_form' gem 'postmark' gem 'postmark-rails' gem 'bootstrap-datepicker-rails' gem 'watu_table_builder', :require => 'table_builder' gem 'sqlite3' # Gems used only for assets and not required # in production environments by default. group :assets do gem 'uglifier', '>= 1.0.3' end gem "therubyracer", :require => 'v8' gem 'jquery-rails' gem 'differ' gem 'whenever' gem 'unicorn'
有人可以帮忙吗？
问题是Xcode。 转到Xcode设置 – >下载并确保安装了“命令行工具”。 一旦我安装它们， bundle install运行就好了。
Unicorn旨在利用类Unix系统中的function。
换句话说，它们不适用于Windows
我最近遇到过这个问题。 在我的情况下，这是因为由于某种未知的原因，CC的环境变量（这是Apple的LLVM编译器的垫片）没有被设置。 打字：
$ export CC=cc
在进行bundle install之前在终端中为我工作。
要使更改成为永久更改，您可以将export CC=cc添加到.bash_profile文件中。
如果您执行后者，请确保键入：
$ source ~/.bash_profile
（或打开新的终端窗口）然后再进行bundle install 。
这可能需要更新的ruby补丁p194 – 比如p194 – 安装它：
rvm install 1.9.3-p194
然后再试一次。
你应该总是使用最新的补丁级别，RVM允许这样做：
rvm get stable rvm use 1.9.3 --install
我使用rvm use system来安装gem。 生活在ruby边缘的价格？