ー中略ー remote: Bundle complete! 25 Gemfile dependencies, 72 gems now installed. remote: Gems in the groups development and test were not installed. remote: Bundled gems are installed into ./vendor/bundle. remote: Post-install message from sass: remote: remote: Ruby Sass is deprecated and will be unmaintained as of 26 March 2019. remote: remote: * If you use Sass as a command-line tool, we recommend using Dart Sass, the new remote: primary implementation: https://sass-lang.com/install remote: remote: * If you use Sass as a plug-in for a Ruby web framework, we recommend using the remote: sassc gem: https://github.com/sass/sassc-ruby#readme remote: remote: * For more details, please refer to the Sass blog: remote: http://sass.logdown.com/posts/7081811 remote: remote: Bundle completed (47.91s) remote: Cleaning up the bundler cache. remote: Warning: the running version of Bundler (1.15.2) is older than the version that created the lockfile (1.17.0). We suggest you upgrade to the latest version of Bundler by running `gem install bundler`. remote: The latest bundler is 1.17.1, but you are currently running 1.15.2. remote: To update, run `gem install bundler` remote: -----> Detecting rake tasks remote: -----> Preparing app for Rails asset pipeline remote: Running: rake assets:precompile remote: Yarn executable was not detected in the system. remote: Download Yarn at https://yarnpkg.com/en/docs/install ー中略ー remote: Tasks: TOP => assets:precompile remote: (See full trace by running task with --trace) remote: [1m[31m remote: ! remote: ! Precompiling assets failed. remote: 
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