Переходный камень не разрешается правильно

Question

Bundler could not find compatible versions for gem "activemodel":
  In Gemfile:
    rails (= 5.1.6.1) was resolved to 5.1.6.1, which depends on
      activemodel (= 5.1.6.1)

    web-console (~> 3.7.0) was resolved to 3.7.0, which depends on
      activemodel (>= 5.0)

Разве переходное значение activemodel из web-console не должно разрешаться в 5.1.6.1?Может быть, я не совсем понимаю, как решаются эти драгоценные камни.

Независимо от того, должны ли они быть совместимыми.

Все сообщение:

    Bundler could not find compatible versions for gem "activemodel":
  In Gemfile:
    rails (= 5.1.6.1) was resolved to 5.1.6.1, which depends on
      activemodel (= 5.1.6.1)

    web-console (~> 3.7.0) was resolved to 3.7.0, which depends on
      activemodel (>= 5.0)

Bundler could not find compatible versions for gem "railties":
  In Gemfile:
    coffee-rails was resolved to 4.1.1, which depends on
      railties (< 5.1.x, >= 4.0.0)

    jquery-rails was resolved to 4.3.1, which depends on
      railties (>= 4.2.0)

    rails (= 5.1.6.1) was resolved to 5.1.6.1, which depends on
      railties (= 5.1.6.1)

    sass-rails (~> 5.0) was resolved to 5.0.6, which depends on
      railties (< 6, >= 4.0.0)

    web-console (~> 3.7.0) was resolved to 3.7.0, which depends on
      railties (>= 5.0)