therubyracer - Gem::Ext::BuildError: ERROR: Failed to build gem native extension

Question

I\'m trying to install the following gem versions on Mavericks

• libv8 (3.16.14.3)
• therubyracer (0.12.1)

Obviously therubyracer gems depe

Answer 1

I just run bundle update, and it worked for me.

Obs.: Using Ruby 2.3.0

Answer 2

This steps worked for me.

OS: Maverick Ruby: 2.1.1

gem uninstall libv8
gem install therubyracer -v '0.11.3'
gem install libv8 -v '3.11.8.13' -- --with-system-v8

Answer 3

I've got this issue for MacOS Mojave 10.14.2 and I was able to fix this issue when I found where package v8-315 was installed and what the folder name was. In my case, it was here /usr/local/opt/v8@3.15.

To fix this, I've run next:

brew install v8-315
gem install libv8 -v '3.16.14.15' -- --with-system-v
gem install therubyracer -v '0.12.2' -- --with-system-v8 --with-v8-dir=/usr/local/opt/v8@3.15
bundle install

Answer 4

I couldn't get therubyracer to build on macOS Catalina 10.15 due to the libv8 dependency, despite installing the x64 (64-bit variant) of libv8.

The solution for me, was to switch from therubyracer to mini_racer, the mini_racer gem installed (without needing to build locally) and, hey presto! I could continue.

Try it!

Answer 5

The above answers did not work for me; my bundler config has disable-shared-gems enabled which causes additional issues.

I'm using Yosemite 10.10.1, Rails 3.2.x, and Ruby 1.9.3p550.

The following snippet in my bin/setup has fixed the issue for me.

if ! bundle show therubyracer; then
    bundle config build.libv8 --with-system-v8
    gem install --install-dir vendor/bundle libv8 -v 3.16.14.7
    gem install libv8 -v 3.16.14.7
    gem install --install-dir vendor/bundle therubyracer 
fi

Answer 6

I found a workaround to the above problem.

This is more of a compatibility among libv8 and therubyracer.

gem install libv8 -v '3.3.10.4' -- --with-system-v8

gem install therubyracer -v '0.10.2'

This should work fine as both the versions are compatible with me. Initially I was trying to install the version 0.12.0 for therubyracer and was facing the issue. Once I switched to version 0.10.2, everything worked fine.

My current OS: Mavericks