Error installing ffi 1.11.1 on Mac

[sylhare]

While doing bundle install I get:

Installing ffi 1.11.1 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

With then

An error occurred while installing ffi (1.11.1), and Bundler cannot continue.
Make sure that `gem install ffi -v '1.11.1' --source 'https://rubygems.org/'` succeeds before bundling.

In Gemfile:
  type-on-strap was resolved to 1.3.0, which depends on
    jekyll-seo-tag was resolved to 2.6.1, which depends on
      jekyll was resolved to 3.8.6, which depends on
        jekyll-sass-converter was resolved to 1.5.2, which depends on
          sass was resolved to 3.7.4, which depends on
            sass-listen was resolved to 4.0.0, which depends on
              rb-inotify was resolved to 0.10.0, which depends on
                ffi

[sylhare]

The solution was to use a different version of ruby using rvm to switch following this answer

Then install a new version (don't forget to source the new rvm path in order to use it in your current session):

rvm install 2.5.5
rvm use 2.5.5
bundle install

And it worked!

[sylhare]

For Jekyll installation issues on Mac:

https://jekyllrb.com/docs/installation/macos/