SyntaxErrorがでてherokuにpushできない。

前提・実現したいこと

herokuにpushしたい。

###エラーメッセージ

ruby
1 !     Warning: Multiple default buildpacks reported the ability to handle this app. The first buildpack in the list below will be used.
2			Detected buildpacks: Ruby,Node.js
3			See https://devcenter.heroku.com/articles/buildpacks#buildpack-detect-order
4-----> Ruby app detected
5-----> Compiling Ruby/Rails
6-----> Using Ruby version: ruby-2.6.4
7-----> Installing dependencies using bundler 1.17.3
8       Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
9       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`.
10       Fetching gem metadata from https://rubygems.org/............
11
12       ......
13
14       Please check your Rails app for 'config.i18n.fallbacks = true'.
15       If you're using I18n (>= 1.1.0) and Rails (< 5.2.2), this should be
16       'config.i18n.fallbacks = [I18n.default_locale]'.
17       If not, fallbacks will be broken in your app by I18n 1.1.x.
18       
19       For more info see:
20       https://github.com/svenfuchs/i18n/releases/tag/v1.1.0
21       
22       Post-install message from sass:
23       
24       Ruby Sass has reached end-of-life and should no longer be used.
25       
26       * If you use Sass as a command-line tool, we recommend using Dart Sass, the new
27         primary implementation: https://sass-lang.com/install
28       
29       * If you use Sass as a plug-in for a Ruby web framework, we recommend using the
30         sassc gem: https://github.com/sass/sassc-ruby#readme
31       
32       * For more details, please refer to the Sass blog:
33         https://sass-lang.com/blog/posts/7828841
34       
35       Bundle completed (200.70s)
36       Cleaning up the bundler cache.
37       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`.
38-----> Installing node-v10.15.3-linux-x64
39-----> Installing yarn-v1.16.0
40-----> Detecting rake tasks
41 !
42 !     Could not detect rake tasks
43 !     ensure you can run `$ bundle exec rake -P` against your app
44 !     and using the production group of your Gemfile.
45 !     rake aborted!
46 !     SyntaxError: /tmp/build_db96f59c072b977253449d336995ebf3/config/application.rb:33: syntax error, unexpected end-of-input, expecting end
47
48 ......
49 
50 !     Push rejected, failed to compile Ruby app.
51 !     Push failed
52

試したこと

config/application.rbは下記の通りですがエラー箇所がみつかりませんでした。

require_relative 'boot'

require "rails"
# Pick the frameworks you want:
require "active_model/railtie"
require "active_job/railtie"
require "active_record/railtie"
require "active_storage/engine"
require "action_controller/railtie"
require "action_mailer/railtie"
require "action_mailbox/engine"
require "action_text/engine"
require "action_view/railtie"
require "action_cable/engine"
require "sprockets/railtie"
# require "rails/test_unit/railtie"

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module Amazonlist2
  class Application < Rails::Application
    config.load_defaults 6.0
    config.i18n.default_locale = :ja
    config.action_view.field_error_proc = Proc.new { |html_tag, instance| html_tag }
    config.assets.compile = true
    config.assets.initialize_on_precompile=false
    config.generators do |g|
      g.stylesheets false  
      g.javascripts false   
      g.helper false       
      g.test_framework :rspec,
                        fixtures: false,
                        view_specs: false,
                        helper_specs: false,
                        routing_specs: false,
                        controller_specs: false,
                        request_specs: false
      g.fixture_replacement :factory_bot, dir: "spec/factories"
    end
  end
end