我正试图在笔记本电脑上本地运行jekyll。 我按照Github的指南去做，https://help.github.com/articles/using-jekyll-with-pages 不幸的是，当我打字时我被卡住了 $ bundle install 我收到以下错误：
Fetching gem metadata from https://rubygems.org/.........Failed to load /etc/gemrc due to permissions problem.
Resolving dependencies...
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/usr/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/bin/ruby
--with-redcloth_scan-dir
--without-redcloth_scan-dir
--with-redcloth_scan-include
--without-redcloth_scan-include=${redcloth_scan-dir}/include
--with-redcloth_scan-lib
--without-redcloth_scan-lib=${redcloth_scan-dir}/lib
--with-clib
--without-clib
/usr/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /usr/lib/ruby/2.1.0/mkmf.rb:541:in `try_link0'
from /usr/lib/ruby/2.1.0/mkmf.rb:556:in `try_link'
from /usr/lib/ruby/2.1.0/mkmf.rb:742:in `try_func'
from /usr/lib/ruby/2.1.0/mkmf.rb:973:in `block in have_library'
from /usr/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
from /usr/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
from /usr/lib/ruby/2.1.0/mkmf.rb:321:in `open'
from /usr/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
from /usr/lib/ruby/2.1.0/mkmf.rb:321:in `open'
from /usr/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
from /usr/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
from /usr/lib/ruby/2.1.0/mkmf.rb:968:in `have_library'
from extconf.rb:5:in `<main>'
extconf failed, exit code 1
Gem files will remain installed in /tmp/bundler20140903-2231-pkzqqj/RedCloth-4.2.9/gems /RedCloth-4.2.9 for inspection.
Results logged to /tmp/bundler20140903-2231-pkzqqj/RedCloth-4.2.9/extensions/x86_64-linux/2.1.0/RedCloth-4.2.9/gem_make.out
An error occurred while installing RedCloth (4.2.9), and Bundler cannot
continue.
Make sure that `gem install RedCloth -v '4.2.9'` succeeds before bundling.
我尝试多次安装ruby，但它没有解决我的问题。你有任何提示吗？
答案 0 :(得分：5)
我在MacOS上遇到了这个问题，并且通过同意Xcode许可证来解决这个问题。我最近更新了Xcode，事实证明我需要重新同意许可才能成功使用命令行工具。
跑步：
xcodebuild -license
答案 1 :(得分：1)
这对我有用：
bundle config build.nokogiri --use-system-libraries
bundle install
答案 2 :(得分：0)
brew install qt
然后
gem install RedCloth -v '4.2.9'
然后
bundle install