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

Question

I made a rails project with,

rails new test_bootstrap.

succeeded.

moved to the project dir and added the gems

gem \         


        

Answer 1

My issue wasn't related with therubyracer at all just libv8 gem and as @rishav-bhardwaj pointed --with-system-v8 didn't do the trick, instead i had to exec

bundle update

then

bundle install

and finally

Bundle complete!

The error is gone!

Gem::Ext::BuildError: ERROR: Failed to build gem native extension. An error occurred while installing libv8 (3.16.14.7), and Bundler cannot continue. Make sure that `gem install libv8 -v '3.16.14.7'` succeeds before bundling.

Answer 2

In my case I resolved this situation by requiring 'mini_racer', '~> 0.2.6' in my Gemfile

Then bundle install command worked.

Answer 3

i feel this has less to do with libv8 and more to do with therubyracer.

i received your same error while running a bundle install on a rails app. if you have encountered this similarly, try installing the gem outside of bundle like so:

gem install therubyracer

then run bundle install. i hope this works for you too.

Answer 4

With homebrew this helps me to solve this error.

brew tap homebrew/versions
brew install v8-315

gem install libv8 -v '3.16.14.13' -- --with-system-v8
gem install therubyracer -- --with-v8-dir=/usr/local/opt/v8-315

bundle install

Seen on rubyracer Github issues.

Answer 5

I was also unable to install this gem instead of using

--with-system-v8

once try to do bundle update which worked fine for me

Answer 6

How to resolve libv8/therubyracer issue

I encountered similar issue in which after installing libv8, error occurs installing therubyracer. Here is my solution:

$ gem install libv8 -v '3.16.14.3' -- --with-system-v8
   
$ bundle install

-- see error installing therubyracer --

$ gem uninstall libv8

$ brew install v8

$ gem install therubyracer

$ bundle install

-- see error installing libv8 --

$ gem install libv8 -v '3.16.14.3' -- --with-system-v8