title: ERROR: Failed to build gem native extension. (Mac Mountain Lion / Compass / RVM )
body: <p>I don't have any clue how to solve this.</p>
  
  <p>I reinstalled the Xcode Commandline tools which were missing previously - but the problem still persists.</p>
  
  <p>Compass and CodeKit do not work as expected.</p>
  
  <p>Any idea what to do?</p>
  
  <pre><code>Marcs-Mac-mini:~ marc$ gem update --system
  Error loading RubyGems plugin "/Users/marc/.rvm/gems/ruby-2.1.0@global/gems/executable-hooks-1.3.1/lib/rubygems_plugin.rb": ERROR: Failed to build gem native extension.
  
      /usr/local/Cellar/ruby/2.1.0/bin/ruby extconf.rb
  /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require': dlopen(/usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/x86_64-darwin12.0/openssl.bundle, 9): Library not loaded: @@HOMEBREW_CELLAR@@/openssl/1.0.1f/lib/libcrypto.1.0.0.dylib (LoadError)
    Referenced from: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
    Reason: image not found - /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/x86_64-darwin12.0/openssl.bundle
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/openssl.rb:17:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/security.rb:11:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/package.rb:43:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/installer.rb:9:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Users/marc/.rvm/gems/ruby-2.1.0@global/gems/executable-hooks-1.3.1/lib/executable-hooks/regenerate_binstubs_command.rb:2:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from extconf.rb:16:in `&lt;main&gt;'
  
  extconf failed, exit code 1
  
  Gem files will remain installed in /Users/marc/.rvm/gems/ruby-2.1.0@global/gems/executable-hooks-1.3.1 for inspection.
  Results logged to /Users/marc/.rvm/gems/ruby-2.1.0@global/extensions/x86_64-darwin-12/2.1.0/executable-hooks-1.3.1/gem_make.out
   (Gem::Ext::BuildError)
  Error loading RubyGems plugin "/Users/marc/.rvm/gems/ruby-2.1.0@global/gems/gem-wrappers-1.2.4/lib/rubygems_plugin.rb": ERROR: Failed to build gem native extension.
  
      /usr/local/Cellar/ruby/2.1.0/bin/ruby extconf.rb
  /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require': dlopen(/usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/x86_64-darwin12.0/openssl.bundle, 9): Library not loaded: @@HOMEBREW_CELLAR@@/openssl/1.0.1f/lib/libcrypto.1.0.0.dylib (LoadError)
    Referenced from: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
    Reason: image not found - /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/x86_64-darwin12.0/openssl.bundle
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/openssl.rb:17:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/security.rb:11:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/package.rb:43:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/installer.rb:9:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Users/marc/.rvm/gems/ruby-2.1.0@global/gems/executable-hooks-1.3.1/lib/executable-hooks/regenerate_binstubs_command.rb:2:in `&lt;top (required)&gt;'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from extconf.rb:16:in `&lt;main&gt;'
  
  extconf failed, exit code 1
  
  Gem files will remain installed in /Users/marc/.rvm/gems/ruby-2.1.0@global/gems/executable-hooks-1.3.1 for inspection.
  Results logged to /Users/marc/.rvm/gems/ruby-2.1.0@global/extensions/x86_64-darwin-12/2.1.0/executable-hooks-1.3.1/gem_make.out
   (Gem::Ext::BuildError)
  ERROR:  Loading command: update (LoadError)
    dlopen(/usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/x86_64-darwin12.0/openssl.bundle, 9): Library not loaded: @@HOMEBREW_CELLAR@@/openssl/1.0.1f/lib/libcrypto.1.0.0.dylib
    Referenced from: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
    Reason: image not found - /usr/local/Cellar/ruby/2.1.0/lib/ruby/2.1.0/x86_64-darwin12.0/openssl.bundle
  ERROR:  While executing gem ... (NoMethodError)
      undefined method `invoke_with_build_args' for nil:NilClass
  </code></pre>