ERROR: Failed to create native gem extension on Yosemite

Question

I have a problem installing CocoaPods on Yosemite. I installed the gem installation with the following command.

sudo gem install cocoapods 

This is the response of the team that is mentioned.

 Building native extensions. This could take a while... ERROR: Error installing cocoapods: ERROR: Failed to build gem native extension. "/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby" -rubygems /Library/Ruby/Gems/2.0.0/gems/rake-0.9.6/bin/rake RUBYARCHDIR=/Library/Ruby/Gems/2.0.0/gems/xcodeproj-0.17.0/ext RUBYLIBDIR=/Library/Ruby/Gems/2.0.0/gems/xcodeproj-0.17.0/ext /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb checking for -std=c99 option to compiler... *** 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=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:434:in `try_do': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:549:in `block in try_compile' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:502:in `with_werror' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:549:in `try_compile' from extconf.rb:24:in `block in <main>' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:895:in `block in checking_for' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:340:in `block (2 levels) in postpone' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:310:in `open' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:340:in `block in postpone' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:310:in `open' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:336:in `postpone' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:894:in `checking_for' from extconf.rb:23:in `<main>' rake aborted! Command failed with status (1): [/System/Library/Frameworks/Ruby.framework/...] /Library/Ruby/Gems/2.0.0/gems/xcodeproj-0.17.0/ext/xcodeproj/Rakefile:37:in `block in <top (required)>' Tasks: TOP => default => ext (See full trace by running task with --trace) Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/xcodeproj-0.17.0 for inspection. Results logged to /Library/Ruby/Gems/2.0.0/gems/xcodeproj-0.17.0/ext/xcodeproj/gem_make.out 

Can anyone help me?

Answer 1

Finally, I found out what the problem is.

First you need to run the Xcode command.

 xcode-select --install 

Secondly, you need to verify that the Ruby on Rails configuration is correct.

After that, connect the Xcode command-line tool in the Xcode 6 settings.

Then you can use the sudo gem install cocoapods .

Answer 2

I'm not quite sure about the specific error, although most likely you will have to reinstall Ruby after upgrading to Yosemite before installing cocoa pods.

After the upgrade, the Ruby configuration seems to be broken.

In addition, you can use Homebrew to control Ruby versions and installations (this is mainly not only for Ruby).