Installation error

[apollolun]

Cannot get my installation to complete successfully if anyone can help?

Had to change my ruby gemfile to 2.70 from 2.55 to get bundler to install.

`rake db:setup && rake db:migrate && rake db:seed' outputs

rake aborted!
NoMethodError: undefined method new' for BigDecimal:Class /home/apollo/.rvm/gems/ruby-3.0.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:111:in class:BigDecimal'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:106:in <top (required)>' /home/apollo/.rvm/gems/ruby-3.0.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object.rb:3:in require'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object.rb:3:in <top (required)>' /home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/configuration.rb:2:in require'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/configuration.rb:2:in <top (required)>' /home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/railtie.rb:2:in require'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/railtie.rb:2:in <top (required)>' /home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/engine.rb:1:in require'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/engine.rb:1:in <top (required)>' /home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/application.rb:7:in require'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/application.rb:7:in <top (required)>' /home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails.rb:11:in require'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails.rb:11:in <top (required)>' /home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/all.rb:1:in require'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/railties-4.2.11.1/lib/rails/all.rb:1:in <top (required)>' /home/apollo/dspectrumgui/config/application.rb:3:in require'
/home/apollo/dspectrumgui/config/application.rb:3:in <top (required)>' /home/apollo/dspectrumgui/Rakefile:4:in <top (required)>'
/home/apollo/.rvm/gems/ruby-3.0.0/gems/rake-12.3.3/exe/rake:27:in `<top (required)>'
(See full trace by running task with --trace)

rvm list output

=> ruby-2.5.5 [ x86_64 ]

bundle install output

Using rake 12.3.3
Using concurrent-ruby 1.1.5
Using i18n 0.9.5
Using minitest 5.11.3
Using thread_safe 0.3.6
Using tzinfo 1.2.5
Using activesupport 4.2.11.1
Using builder 3.2.3
Using erubis 2.7.0
Using mini_portile2 2.4.0
Using nokogiri 1.10.4
Using rails-deprecated_sanitizer 1.0.3
Using rails-dom-testing 1.0.9
Using crass 1.0.4
Using loofah 2.2.3
Using rails-html-sanitizer 1.2.0
Using actionview 4.2.11.1
Using rack 1.6.11
Using rack-test 0.6.3
Using actionpack 4.2.11.1
Using globalid 0.4.2
Using activejob 4.2.11.1
Using mini_mime 1.0.1
Using mail 2.7.1
Using actionmailer 4.2.11.1
Using activemodel 4.2.11.1
Using arel 6.0.4
Using activerecord 4.2.11.1
Using public_suffix 3.1.1
Using addressable 2.6.0
Using execjs 2.7.0
Using autoprefixer-rails 9.6.0
Using thor 0.20.3
Using railties 4.2.11.1
Using momentjs-rails 2.20.1
Using datetime_picker_rails 0.0.7
Using jquery-rails 4.3.5
Using kaminari-core 1.1.1
Using kaminari-actionview 1.1.1
Using kaminari-activerecord 1.1.1
Using kaminari 1.1.1
Using rb-fsevent 0.10.3
Using ffi 1.11.1
Using rb-inotify 0.10.0
Using sass-listen 4.0.0
Using sass 3.7.4
Using sprockets 3.7.2
Using sprockets-rails 3.2.1
Using tilt 2.0.9
Using sass-rails 5.0.7
Using selectize-rails 0.12.6
Using administrate 0.11.0
Using bcrypt 3.1.13
Using coderay 1.1.2
Using erubi 1.8.0
Using better_errors 2.5.1
Using debug_inspector 0.0.3
Using binding_of_caller 0.8.0
Using sassc 2.0.1
Using bootstrap-sass 3.4.1
Using bundler 1.17.3
Using byebug 11.0.1
Using regexp_parser 1.5.1
Using xpath 3.2.0
Using capybara 3.25.0
Using chartkick 3.2.0
Using childprocess 1.0.1
Using coffee-script-source 1.12.2
Using coffee-script 2.4.1
Using coffee-rails 4.1.1
Using database_cleaner 1.7.0
Using orm_adapter 0.5.0
Using responders 2.4.1
Using warden 1.2.7
Using devise 4.7.1
Using devise_invitable 1.7.5
Using diff-lcs 1.3
Using factory_girl 4.9.0
Using factory_girl_rails 4.9.0
Using faker 1.9.5
Using formatador 0.2.5
Using rspec-support 3.8.2
Using rspec-core 3.8.2
Using ruby-progressbar 1.10.1
Using fuubar 2.4.1
Using ruby_dep 1.5.0
Using listen 3.1.5
Using lumberjack 1.0.13
Using nenv 0.3.0
Using shellany 0.0.1
Using notiffany 0.1.1
Using method_source 0.9.2
Using pry 0.12.2
Using guard 2.15.0
Using guard-compat 1.2.1
Using guard-bundler 2.2.1
Using guard-rails 0.8.1
Using rspec-expectations 3.8.4
Using rspec-mocks 3.8.1
Using rspec 3.8.0
Using guard-rspec 4.7.3
Using temple 0.8.1
Using haml 5.1.1
Using sexp_processor 4.12.1
Using ruby_parser 3.13.1
Using html2haml 2.2.0
Using haml-rails 1.0.0
Using high_voltage 3.1.2
Using jbuilder 2.9.1
Using turbolinks-source 5.2.0
Using turbolinks 5.2.0
Using jquery-turbolinks 2.1.0
Using json 2.2.0
Using launchy 2.4.3
Using quiet_assets 1.1.0
Using rails 4.2.11.1
Using rails_serve_static_assets 0.0.5
Using rails_stdout_logging 0.0.5
Using rails_12factor 0.0.3
Using rails_apps_pages 0.6.7
Using rails_apps_testing 0.3.13
Using rails_layout 1.0.42
Using rubyzip 1.2.3
Using rails_real_favicon 0.0.12
Using rake-progressbar 0.0.5
Using ransack 1.8.10
Using rb-fchange 0.0.6
Using rspec-rails 3.8.2
Using seed_dump 3.3.1
Using selenium-webdriver 3.142.3
Using shareable 1.1.4
Using shoulda-context 1.2.2
Using shoulda-matchers 3.1.3
Using shoulda 3.6.0
Using simple_form 4.0.0
Using spring 2.1.0
Using spring-commands-rspec 1.0.4
Using sqlite3 1.3.13
Using uglifier 4.1.20
Using upmin-admin 0.1.3
Using web-console 2.3.0
Using will_paginate 3.1.7
Using will_paginate-bootstrap 1.0.2
Bundle complete! 51 Gemfile dependencies, 143 gems now installed.
Use bundle info [gemname] to see where a bundled gem is installed.