Testing the gem with spree 4 failed

[Carlos Azuaje]

gem 'spree', github: 'spree/spree'
gem 'spree_auth_devise', github: 'spree/spree_auth_devise'
gem 'spree_gateway', github: 'spree/spree_gateway'
gem 'spree_wishlist', github: 'spree-contrib/spree_wishlist', branch: 'master'
gem 'spree_email_to_friend', github: 'spree-contrib/spree_email_to_friend', branch: 'master'

Output of bundle update:

Bundler could not find compatible versions for gem "listen":
  In Gemfile:
    listen (< 3.2, >= 3.0.5)

    spring-watcher-listen (~> 2.0.0) was resolved to 2.0.1, which depends on
      listen (< 4.0, >= 2.7)

Bundler could not find compatible versions for gem "spree_core":
  In Gemfile:
    spree was resolved to 4.1.0.rc3, which depends on
      spree_core (= 4.1.0.rc3)

    spree_auth_devise was resolved to 4.1.0.rc1, which depends on
      spree_core (< 5.0, >= 4.1.0.alpha)

    spree_email_to_friend was resolved to 1.3.0, which depends on
      spree_core (< 4.0, >= 3.1.0)

    spree_gateway was resolved to 3.7.0, which depends on
      spree_core (< 5.0, >= 3.1.0)

[Nabarun]

Getting the same dependency issue with Spree mail settings, Spree Wish list, Spree email to friends Extensions.

[Carlos Azuaje]

Sad.

[Damian Legawiec]

Fixed!