herokuにデプロイ出来ません。。。

herokuにまたデプロイできません。。。

一通り試行錯誤してみたのですがダメでした。
NameError: uninitialized constant CarrierWave::Storage::Fog　は出なくなりました。
Sass::SyntaxError: File to import not found or unreadable: normalize.　sassのエラーが出ました。sassのgemをいじったからだと思います。
fog-awsを使ってもダメでした。

発生している問題・エラーメッセージ

     
       Gems in the groups development and test were not installed.
       Bundled gems are installed into `./vendor/bundle`
       Post-install message from i18n:
       
       HEADS UP! i18n 1.1 changed fallbacks to exclude default locale.
       But that may break your application.
       
       Please check your Rails app for 'config.i18n.fallbacks = true'.
       If you're using I18n (>= 1.1.0) and Rails (< 5.2.2), this should be
       'config.i18n.fallbacks = [I18n.default_locale]'.
       If not, fallbacks will be broken in your app by I18n 1.1.x.
       
       For more info see:
       https://github.com/svenfuchs/i18n/releases/tag/v1.1.0
       
       Post-install message from trollop:
       !    The 'trollop' gem has been deprecated and has been replaced by 'optimist'.
       !    See: https://rubygems.org/gems/optimist
       !    And: https://github.com/ManageIQ/optimist
       Post-install message from fog:
       ------------------------------
       Thank you for installing fog!
       
       IMPORTANT NOTICE:
       If there's a metagem available for your cloud provider, e.g. `fog-aws`,
       you should be using it instead of requiring the full fog collection to avoid
       unnecessary dependencies.
       
       'fog' should be required explicitly only if the provider you use doesn't yet
       have a metagem available.
       ------------------------------
       Post-install message from sass:
       
       Ruby Sass is deprecated and will be unmaintained as of 26 March 2019.
       
       * If you use Sass as a command-line tool, we recommend using Dart Sass, the new
         primary implementation: https://sass-lang.com/install
       
       * If you use Sass as a plug-in for a Ruby web framework, we recommend using the
         sassc gem: https://github.com/sass/sassc-ruby#readme
       
       * For more details, please refer to the Sass blog:
         http://sass.logdown.com/posts/7081811
       
       Bundle completed (77.82s)
       Cleaning up the bundler cache.
-----> Installing node-v8.10.0-linux-x64
-----> Detecting rake tasks
-----> Preparing app for Rails asset pipeline
       Running: rake assets:precompile
       Yarn executable was not detected in the system.
       Download Yarn at https://yarnpkg.com/en/docs/install
       I, [2019-02-17T17:48:24.236643 #1661]  INFO -- : Writing /tmp/build_7c149b9d96946daa1b57948e42c2c256/public/assets/application-cb9e80baa3e87dd80b4ca48376144010a84ccf41deadd24174943da9f19cae7b.js
       I, [2019-02-17T17:48:24.237153 #1661]  INFO -- : Writing /tmp/build_7c149b9d96946daa1b57948e42c2c256/public/assets/application-cb9e80baa3e87dd80b4ca48376144010a84ccf41deadd24174943da9f19cae7b.js.gz
       rake aborted!
       Sass::SyntaxError: File to import not found or unreadable: normalize.
       (sass):362
       /tmp/build_7c149b9d96946daa1b57948e42c2c256/vendor/bundle/ruby/2.5.0/gems/sass-ogical_paths'
       /tmp/build_7c149b9d96946daa1b57948e42c2c256/vendor/bundle/ruby/2.5.0/gems/sprockets-3.7.2/lib/sprockets/legacy.rb:104:in `each'

       (See full trace by running task with --trace)
 !
 !     Precompiling assets failed.
 !
 !     Push rejected, failed to compile Ruby app.
 !     Push fail