$rails newができない｡

エラーメッセージ

Bundler could not find compatible versions for gem "sprockets":
  In snapshot (Gemfile.lock):
    sprockets (= 4.0.0)

  In Gemfile:
    sass-rails (~> 5.0) was resolved to 5.1.0, which depends on
      sprockets (< 4.0, >= 2.8)

    rails (~> 5.2.3) was resolved to 5.2.3, which depends on
      sprockets-rails (>= 2.0.0) was resolved to 3.2.1, which depends on
        sprockets (>= 3.0.0)

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.
         run  bundle exec spring binstub --all
Could not find gem 'sqlite3' in any of the gem sources listed in your Gemfile.
Run `bundle install` to install missing gems.

Runningbundle updateと記載があるので
$bundle updateしたら進みました｡

Bundle updated!
Post-install message from chromedriver-helper:

  +--------------------------------------------------------------------+
  |                                                                    |
  |  NOTICE: chromedriver-helper is deprecated after 2019-03-31.       |
  |                                                                    |
  |  Please update to use the 'webdrivers' gem instead.                |
  |  See https://github.com/flavorjones/chromedriver-helper/issues/83  |
  |                                                                    |
  +--------------------------------------------------------------------+

Post-install message from sass:

Ruby Sass has reached end-of-life and should no longer be used.

* 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:
  https://sass-lang.com/blog/posts/7828841