Rails – Bundle install problems with json

Question

I'm running OS X Mavericks, with Rails 3.2.12. When I try to do rails new project, it gets stuck at bundle install.

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/local/rvm/rubies/ruby-1.9.3-p392/bin/ruby extconf.rb creating Makefile make compiling generator.c make: gcc-4.2: No such file or directory make: *** [generator.o] Error 1 Gem files will remain installed in /usr/local/rvm/gems/ruby-1.9.3-p392/gems/json-1.8.1 for inspection. Results logged to /usr/local/rvm/gems/ruby-1.9.3-p392/gems/json-1.8.1/ext/json/ext/generator/gem_make.out An error occurred while installing json (1.8.1), and Bundler cannot continue. Make sure that `gem install json -v '1.8.1'` succeeds before bundling.

I get the same error when I do 'gem install json....' as it suggests. I've installed the latest version of Xcode, with the command line tools. When I do:

which gcc

I get:

/usr/bin/gcc

I'm new to all this stuff really, so please try to keep things simple.

kafuchau · Accepted Answer · 2013-11-13 18:45:46Z

7

So, prior to XCode 5, there was a gcc-4.2 binary, which got removed in the upgrade.

I found this tutorial helpful in getting gcc-4.2 back and running with ruby. It assumes that you're using homebrew to manage packages on your Mac.

answered Nov 13, 2013 at 18:45

kafuchau

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2 Comments

Francisco Quintero Over a year ago

the first link you shared, helped me a lot. Thanks.

Ferda-Ozdemir-Sonmez Over a year ago

Hi,I was getting exactly same error related to json on rails 4 on windows. I didn't hear about this xcode. Is it something related to MACOs? I couldn't decide if installing it on windows will fix my problem too ??

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