rails– category –

エラーメッセージ /Users/hoge/work/everydayrails-rspec-2017/vendor/bundle/ruby/3.1.0/extensions/x86_64-darwin-21/3.1.0/ffi-1.9.18/gem_make.out An error occurred while installing ffi (1.9.18), and Bundler cannot continue. Make sure that `g...

・エラー１ DEPRECATION WARNING: Calling `<<` to an ActiveModel::Errors message array in order to add an error is deprecated. Please call `ActiveModel::Errors#add` instead. 解決策→ ActiveModel::Errors#addを使用する # << は非推...