Monorepo , React +Rails api, PG Issue on Deployment: Can't find the 'libpq-fe.h header - Support - Netlify Support Forums
An error occurred while installing puma (5.6.5) を解消した - Just do IT
An error occurred while installing mysql2 (0.5.2), and Bundler cannot continue. Make sure that `gem install mysql2 -v '0.5.2' --source 'https://rubygems.org/'` succeeds before bundling.と出てきたときの対処法② - Qiita
MySQLのところでbundle install失敗(Ruby on Rails) | 株式会社Orfool
An error occurred while installing puma (4.3.3), and Bundler cannot continue. - takuya178の日記
解決】An error occurred while installing nokogiri (1.10.8), and Bundler cannot continue. Make sure that `gem install nokogiri -v '1.10.8' --source 'https://rubygems.org/'` succeeds before bundling. - Qiita