libv8 (3.11.8.17) bundle install error on Mac

Question

I upgraded ruby to 1.9.3, and now I can't get my server to start. When I run bundle install, it says

An error occurred while installing libv8 (3.11.8.17), and Bundler cannot continue.
Make sure that `gem install libv8 -v '3.11.8.17'` succeeds before bundling.

When I try to install that gem, it says

ERROR:  Error installing libv8:
        ERROR: Failed to build gem native extension.

        /Users/Erica/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb
creating Makefile
Compiling v8 for x64
Using python 2.7.1
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
Using compiler: g++
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher

I'm an HTML/CSS coder, not really a Ruby developer, so any thoughts are really appreciated.

Answer 1

I resolved this issue by using the following command:

gem install libv8 -v 3.11.8.17 -- --with-system-v8

It works with RVM on Mavericks.

https://stackoverflow.com/a/19667419/763744

Answer 2

Try reinstalling v8 in homebrew:

gem uninstall libv8
brew install v8
gem install libv8

Answer 3

Do:

gem install rmagick -v '2.13.2'
gem install libv8 -v 3.11.8.17 -- --with-system-v8

Answer 4

I encountered this problem a few times already, first thing I'd try is to (re)install command line tools . Normally should work.

Another attempt that succeeded once was uninstalling libv8 , and then installing it again. It takes ages...

Answer 5

I had this same problem when I upgraded from OSX Mountain Lion to OSX Mavericks.

Upgrading from ruby-1.8.7-p354 to ruby-1.8.7-375 did the trick for me.

libv8 (3.16.14.3-x86_64-darwin-13) and the therubyracer (0.12.0) gems installed without problem.

assuming you use rbenv:

rbenv versions
  system
  * 1.8.7-p354
  2.0.0-rc2

rbenv uninstall 1.8.7-p354
rbenv install 1.8.7-p375

rbenv versions
  system
  * 1.8.7-p375
  2.0.0-rc2

bundle install

Answer 6

This simple solution worked for me:

$ gem uninstall libv8 # select "All Versions" if prompted
$ gem install libv8