ERROR: Failed to create native gem extension on rubygem installation

When I try to run "bundle install" I get the error message below

environment = OSX 10.9.4 , rbenv 0.4.0 , Ruby 2.1.2 , Homebrew 0.9.5

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /Users/hirotakagotanda/.rbenv/versions/2.1.2/bin/ruby extconf.rb 
*** 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=/Users/hirotakagotanda/.rbenv/versions/2.1.2/bin/ruby
/Users/hirotakagotanda/.rbenv/versions/2.1.2/lib/ruby/2.1.0/fileutils.rb:1573:in `stat': No such file or directory @ rb_file_s_stat - ./212/ruby_debug.h (Errno::ENOENT)
    from /Users/hirotakagotanda/.rbenv/versions/2.1.2/lib/ruby/2.1.0/fileutils.rb:1573:in `block in fu_each_src_dest'
    from /Users/hirotakagotanda/.rbenv/versions/2.1.2/lib/ruby/2.1.0/fileutils.rb:1587:in `fu_each_src_dest0'
    from /Users/hirotakagotanda/.rbenv/versions/2.1.2/lib/ruby/2.1.0/fileutils.rb:1571:in `fu_each_src_dest'
    from /Users/hirotakagotanda/.rbenv/versions/2.1.2/lib/ruby/2.1.0/fileutils.rb:399:in `cp'
    from extconf.rb:83:in `block in <main>'
    from extconf.rb:82:in `each'
    from extconf.rb:82:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /Users/hirotakagotanda/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/debugger-1.6.6 for inspection.
Results logged to /Users/hirotakagotanda/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-13/2.1.0-static/debugger-1.6.6/gem_make.out
An error occurred while installing debugger (1.6.6), and Bundler cannot continue.
Make sure that `gem install debugger -v '1.6.6'` succeeds before bundling.

Can someone please provide me a solution, I was unsuccessful to find out any ...

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3 answers

This is probably a problem with the Xcode command line tools. To achieve this, you need to follow a few steps.

This question Installing the Ruby Debug IDE Gem gives one example.

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, xcode (, )

xcodebuild -license

0

. 2.1.1 .

rbenv local 2.1.1
bundle install

ruby ​​2.1.2,

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