docker で開発されたツールをセットアップしていたら以下のメッセージが出て bundle install が失敗してしまい困りました。
その時のメモを残しておこうと思います。
問題のメッセージ
=> ERROR [8/8] RUN bundle install 3.0s ------ > [8/8] RUN bundle install: #12 0.474 The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, run `bundle lock --add-platform x86-mingw32 x86-mswin32 x64-mingw32 java`. #12 1.231 Fetching gem metadata from https://rubygems.org/......... #12 2.947 Your bundle is locked to mimemagic (0.3.2), but that version could not be found #12 2.947 in any of the sources listed in your Gemfile. If you haven't changed sources, #12 2.947 that means the author of mimemagic (0.3.2) has removed it. You'll need to update #12 2.947 your bundle to a version other than mimemagic (0.3.2) that hasn't been removed #12 2.947 in order to install. ------ executor failed running [/bin/sh -c bundle install]: exit code: 7
環境
ruby: 2.5.8
rails: 5.2.0
参考にしたサイト
結論
以下の記述を参考に対応したら処理が進みました。
weblog.rubyonrails.org
rails を 5.2.5 にアップデート
