Bundle update output for Spree 2.1

bundle_update_output.log

Bundler could not find compatible versions for gem "actionpack":
  In Gemfile:
    rails (~> 4.0.0) was resolved to 4.0.0, which depends on
      actionpack (= 4.0.0)

    simple_form was resolved to 2.0.2, which depends on
      actionpack (~> 3.0)

Bundler could not find compatible versions for gem "activerecord":
  In Gemfile:
    acts-as-taggable-on (~> 3.4) was resolved to 3.5.0, which depends on
      activerecord (< 5, >= 3.2)

    db2fog was resolved to 0.9.0, which depends on
      activerecord (< 5.0, >= 3.2.0)

    delayed_job_active_record was resolved to 4.1.3, which depends on
      activerecord (< 5.3, >= 3.0)

    immigrant was resolved to 0.3.6, which depends on
      activerecord (>= 3.0)

    paper_trail (~> 5.2.3) was resolved to 5.2.3, which depends on
      activerecord (< 6.0, >= 3.0)

    paperclip (~> 3.4.1) was resolved to 3.4.2, which depends on
      activerecord (>= 3.0.0)

    rails (~> 4.0.0) was resolved to 4.0.0, which depends on
      activerecord (= 4.0.0)

Bundler could not find compatible versions for gem "activesupport":
  In Gemfile:
    activemerchant (~> 1.78) was resolved to 1.78.0, which depends on
      activesupport (< 6.x, >= 3.2.14)

    paperclip (~> 3.4.1) was resolved to 3.4.2, which depends on
      activesupport (>= 3.0.0)

    rabl was resolved to 0.14.0, which depends on
      activesupport (>= 2.3.14)

    rails (~> 4.0.0) was resolved to 4.0.0, which depends on
      activesupport (= 4.0.0)

    rspec-rails (>= 3.5.2) was resolved to 3.8.2, which depends on
      activesupport (>= 3.0)

    shoulda-matchers was resolved to 3.1.3, which depends on
      activesupport (>= 4.0.0)

Bundler could not find compatible versions for gem "byebug":
  In Gemfile:
    byebug (~> 9.0.0)

    pry-byebug (>= 3.4.3) was resolved to 3.5.1, which depends on
      byebug (~> 9.1)

Bundler could not find compatible versions for gem "i18n":
  In Gemfile:
    i18n (~> 0.6.11)

    activemerchant (~> 1.78) was resolved to 1.78.0, which depends on
      i18n (>= 0.6.9)

    rails (~> 4.0.0) was resolved to 4.0.0, which depends on
      activesupport (= 4.0.0) was resolved to 4.0.0, which depends on
        i18n (>= 0.6.4, ~> 0.6)

    i18n-js (~> 3.2.1) was resolved to 3.2.1, which depends on
      i18n (>= 0.6.6)

    rails-i18n (~> 4.0.0) was resolved to 4.0.5, which depends on
      i18n (~> 0.6)

    spree_i18n was resolved to 1.0.0, which depends on
      i18n (~> 0.5)

Bundler could not find compatible versions for gem "listen":
  In Gemfile:
    listen (= 3.0.8)

    guard-rspec (~> 4.7.3) was resolved to 4.7.3, which depends on
      guard (~> 2.1) was resolved to 2.15.0, which depends on
        listen (< 4.0, >= 2.7)

Bundler could not find compatible versions for gem "nokogiri":
  In Gemfile:
    nokogiri (>= 1.6.7.1)

    activemerchant (~> 1.78) was resolved to 1.78.0, which depends on
      nokogiri (~> 1.4)

    capybara (>= 2.15.4) was resolved to 2.18.0, which depends on
      nokogiri (>= 1.3.3)

    chromedriver-helper was resolved to 1.1.0, which depends on
      nokogiri (~> 1.6)

    deface (= 1.0.0) was resolved to 1.0.0, which depends on
      nokogiri (~> 1.6.0)

    roo (~> 2.7.0) was resolved to 2.7.1, which depends on
      nokogiri (~> 1)

    roo-xls (~> 1.1.0) was resolved to 1.1.0, which depends on
      nokogiri

Bundler could not find compatible versions for gem "rails":
  In Gemfile:
    rails (~> 4.0.0)

Could not find gem 'rails (~> 4.0.0)' in any of the sources.

Bundler could not find compatible versions for gem "rails-i18n":
  In Gemfile:
    rails-i18n (~> 4.0.0)

    spree_i18n was resolved to 1.0.0, which depends on
      rails-i18n

Bundler could not find compatible versions for gem "roo":
  In Gemfile:
    roo (~> 2.7.0)

    roo-xls (~> 1.1.0) was resolved to 1.1.0, which depends on
      roo (< 3, >= 2.0.0beta1)

Bundler could not find compatible versions for gem "sass":
  In Gemfile:
    sass (~> 3.3)

    sass-rails (~> 4.0.0) was resolved to 4.0.3, which depends on
      sass (~> 3.2.0)

Bundler could not find compatible versions for gem "sass-rails":
  In Gemfile:
    sass-rails (~> 4.0.0)

    compass-rails was resolved to 3.1.0, which depends on
      sass-rails (< 5.1)

    foundation-icons-sass-rails was resolved to 3.0.0, which depends on
      sass-rails (>= 3.1.1)

Bundler could not find compatible versions for gem "spring":
  In Gemfile:
    spring (= 1.7.2)

    spring-commands-rspec was resolved to 1.0.4, which depends on
      spring (>= 0.9.1)