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Mac(Mojave)でRails5.2系/Ruby2.6系で cannot load such file -- google/protobuf_c (LoadError) エラー

Rails

Posted at 2019-03-11

背景

ローカルMac(Mojave)でRails5.2系/Ruby2.6系。 rails generate migration しようとしたら以下のエラー

bin/rails: Bootsnap::LoadPathCache::FallbackScan
.
.
/Users/xxx/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require': cannot load such file -- google/protobuf_c (LoadError)

やったこと

Gemfileに以下を gem "google-protobuf", "3.7.0.rc.2" を追加。3.6系はrubyの2.6系に対応してないらしい。

参考: https://github.com/protocolbuffers/protobuf/issues/3509#issuecomment-462537872

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