can't setup ruby environment - installing fii gem error

Question

I'm trying to setup environtment for ruby project. But when I run 'bundle', I have error during installing 'fii' gem:

  Installing ffi (1.8.1) Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/bmalets/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb checking for ffi.h... *** 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. /Users/bmalets/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. Gem files will remain installed in /Users/bmalets/.rvm/gems/ruby-1.9.3-p448@api2/gems/ffi-1.8.1 for inspection. Results logged to /Users/bmalets/.rvm/gems/ruby-1.9.3-p448@api2/gems/ffi-1.8.1/ext/ffi_c/gem_make.out An error occurred while installing ffi (1.8.1), and Bundler cannot continue. Make sure that `gem install ffi -v '1.8.1'` succeeds before bundling.

My environment:

OS_X 10.8.4
ruby 1.9.3p448
Xcode 4.6.3
libffi-3.0.13

Please, help me to fix it.

bmalets · Accepted Answer · 2013-07-21 19:17:40Z

4

Make sure that you have installed Apple Xcode and Command Line Tools (look at this screenshot):

https://developer.apple.com/technologies/tools/

After that, don't forget to install libffi.

1) if you are using homebrew

brew install libffi

2) if you are using macport

sudo port install libffi

edited Jul 21, 2013 at 19:17

bmalets

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answered Jul 21, 2013 at 17:56

gvalmon

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5 Comments

patm Over a year ago

That's a very common error. I use macports, they are far more flexible than brew and work like a charm if you come from a unix background. If not though, it's better to use brew.

bmalets Over a year ago

I have already installed 'libffi' and Xcode. Unfortunately, I can't understand what's the cause of problem((.

gvalmon Over a year ago

@bmalets May be these steps will help: stackoverflow.com/a/10610951/595120

bmalets Over a year ago

Try to do this steps. Now have the same problem with atomic gem :D

gvalmon Over a year ago

Did you installed command line tools for xcode? it's accessible via components tab in XCode.

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