When I run bundle install I get an error when it comes to installing the debugger gem (1.6.6). I'm using ruby 2.1.1 and rails 4.0.4. I'm relatively new to rails and am not sure what could be causing this problem.
Error
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-2.1.1/bin/ruby extconf.rb
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
Makefile creation failed
*************************************************************
NOTE: If your headers were not found, try passing
--with-ruby-include=PATH_TO_HEADERS
*************************************************************
*** 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/rvm/rubies/ruby-2.1.1/bin/ruby
--with-ruby-dir
--without-ruby-dir
--with-ruby-include
--without-ruby-include=${ruby-dir}/include
--with-ruby-lib
--without-ruby-lib=${ruby-dir}/lib
extconf failed, exit code 1
Gem files will remain installed in /usr/local/rvm/gems/ruby-2.1.1/gems/debugger-1.6.6 for inspection.
Results logged to /usr/local/rvm/gems/ruby-2.1.1/extensions/x86_64-darwin-12/2.1.0- 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.