Mac macOS

[Mac] MojaveでCocoapodsがアップデートできない...

Mojaveでcocoapodsをアップデートしようとしたら以下のようなログが出てアップデートできませんでした。 sudo gem install cocoapodsが失敗する... ```text `gutter:false; NOTE: Gem::Specification#rubyforge_project= is deprecated with no replacement. It will be removed on or after 2019-12-01. Gem::Specification#rubyforge_project= called from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/gems/2.3.0/specifications/nokogiri-1.5.6.gemspec:22. Building native extensions. This could take a while... ERROR: Error installing cocoapods: ERROR: Failed to build gem native extension. current directory: /Library/Ruby/Gems/2.3.0/gems/ffi-1.13.1/ext/ffi_c /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby -I /Library/Ruby/Site/2.3.0 -r ./siteconf20200929-627-1189suj.rb extconf.rb mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/include/ruby.h extconf failed, exit code 1 Gem files will remain installed in /Library/Ruby/Gems/2.3.0/gems/ffi-1.13.1 for inspection. Results logged to /Library/Ruby/Gems/2.3.0/extensions/universal-darwin-18/2.3.0/ffi-1.13.1/gem_make.out ``` 最近のXcodeをインストールすると、ruby2.3のヘッダーファイルが無いみたいでそれが原因見たいです。 以下の方法で解消できます。 ```bash `gutter:false; $ curl -L https://get.rvm.io | bash -s stable $ rvm install ruby-2.6 $ rvm use ruby-2.6.5 $ rvm --default use 2.6.5 ``` rubyのバージョンはコマンド実行時のログを見て柔軟に変えてください。 ## 参考URL - [原因](https://support.circleci.com/hc/en-us/articles/360035866534-Since-switching-to-Xcode-11-you-receive-Failed-to-build-gem-native-extension-) - [解決方法](https://github.com/CocoaPods/CocoaPods/issues/9538)