title: Error installing debugger: Failed to build gem native extension with ruby-1.9.3-p362
body: <p>While trying run bundle for a new project, I'm encountering the following error:</p>
  
  <pre><code>Installing debugger (1.2.2) with native extensions
  Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
  
      C:/Ruby193/bin/ruby.exe 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
  Makefile creation failed
  **************************************************************************
  No source for ruby-1.9.3-p362 provided with debugger-ruby_core_source gem.
  **************************************************************************
  *** 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=C:/Ruby193/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
  
  
  Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/debugger-1.2.2 for inspection.
  Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/debugger-1.2.2/ext/ruby_debug/gem_make.out
  An error occured while installing debugger (1.2.2), and Bundler cannot continue.
  Make sure that `gem install debugger -v '1.2.2'` succeeds before bundling.
  </code></pre>
  
  <p>Running <code>gem install debugger -v '1.2.2'</code> produces the same results.</p>
  
  <p>I've checked the contents of the mkmf.log and gem_make.out file and they make little sense, but if requested I will post them.</p>
  
  <p>Why doesn't this work?</p>