ruby on rails - Bundle update fails on ffi

Question

I'm attempting to do a bundle update on my rails application but I get the following error:

Installing ffi (1.0.11) with native extensions Unfortunately, a fatal error has occurred. Please report this error to the Bundler issue tracker at https://github.com/carlhuda/bundler/issues so that we can fix it. Thanks!
/Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:552:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

        /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/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.

Provided configuration options:
    --with-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=/Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/bin/ruby
    --with-ffi_c-dir
    --without-ffi_c-dir
    --with-ffi_c-include
    --without-ffi_c-include=${ffi_c-dir}/include
    --with-ffi_c-lib
    --without-ffi_c-lib=${ffi_c-dir}/lib
    --with-libffi-config
    --without-libffi-config
    --with-pkg-config
    --without-pkg-config
/Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/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.
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:931:in `block in have_header'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/mkmf.rb:930:in `have_header'
    from extconf.rb:9:in `<main>'


Gem files will remain installed in /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/ffi-1.0.11 for inspection.
Results logged to /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/ffi-1.0.11/ext/ffi_c/gem_make.out
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:530:in `block in build_extensions'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:505:in `each'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:505:in `build_extensions'
    from /Users/Kyle/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:180:in `install'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/source.rb:90:in `block in install'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/rubygems_integration.rb:82:in `preserve_paths'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/source.rb:89:in `install'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/installer.rb:73:in `block in install_gem_from_spec'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/rubygems_integration.rb:97:in `with_build_args'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/installer.rb:72:in `install_gem_from_spec'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/installer.rb:56:in `block in run'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/installer.rb:55:in `run'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/installer.rb:12:in `install'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/cli.rb:271:in `update'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/vendor/thor/task.rb:22:in `run'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/vendor/thor.rb:263:in `dispatch'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/lib/bundler/vendor/thor/base.rb:386:in `start'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/gems/bundler-1.1.0/bin/bundle:13:in `<top (required)>'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/bin/bundle:19:in `load'
    from /Users/Kyle/.rvm/gems/ruby-1.9.3-p125/bin/bundle:19:in `<main>'

Any ideas?

Answer 1

I ran into a problem similar to this yesterday.

I was able to resolve it using these steps:

https://github.com/carlhuda/bundler/blob/1-0-stable/ISSUES.md

Essentially, there was a problem with my bundle and clearing things out and rebuilding things from scratch resolved it.

The steps are repeated here:

# remove user-specific gems and git repos
rm -rf ~/.bundle/ ~/.gem/

# remove system-wide git repos and git checkouts
rm -rf $GEM_HOME/bundler/ $GEM_HOME/cache/bundler/

# remove project-specific settings and git repos
rm -rf .bundle/

# remove project-specific cached .gem files
rm -rf vendor/cache/

# remove the saved resolve of the Gemfile
rm -rf Gemfile.lock

# try to install one more time
bundle install

Although, given the message in the output text:

You have to install development tools first.

That makes me think you just may not have installed the Apple Xcode Developer Tools. Have you checked that? (I believe they're available in the Mac App Store.)