Rails error installing mysql2 (mysql2-0.3.20)

Question

I am trying to get a rails project up and running on my local machine. When I do bundle install

Fetching mysql2 0.3.20
Installing mysql2 0.3.20 with native ext         


        

Answer 1

This worked for me - macOS Catalina

brew uninstall mysql
gem uninstall mysql2

brew install mysql@5.7
brew link mysql@5.7 --force
gem install mysql2 -v '0.3.21'

# Gemfile
gem 'mysql2', '0.3.21'

bundle update mysql2