I’ll be doing a solutions to common issues in Ruby dev environment series, so here’s the link to the first post:
Today’s solution will be related to the
gem eventmachine fatal error: 'openssl/ssl.h' file not found error.
- Ruby environment
Step 1. First, make sure that the openssl package is removed.
$ brew uninstall openssl
Step 2. Next, remove all unused dependencies.
$ brew autoremove
Step 3. Reinstall openssl.
$ brew install openssl
Step 4. Install gem eventmachine using bundle.
$ bundle install
Note: bundle install is the preferred way, since Bundler (bundle) manages a gem set linked to an application using Gemfile. It introduces a gem version consistency while deploying a ruby app on multiple machines or environments.
Alternatively, you could try running gem install eventmachine -v ‘1.2.7’.
The issue happens mainly because Apple is removing the openssl package during software updates. Feel free to leave a comment below and if you find this tutorial useful, follow our official channel on Telegram.