Redmine 3.x compatibility? about redmine_user_specific_theme HOT 4 OPEN

Bundler could not find compatible versions for gem "nokogiri":
  In Gemfile:
    capybara was resolved to 2.6.2, which depends on
      nokogiri (>= 1.3.3)

    deface (< 1.0.0) was resolved to 0.8.0, which depends on
      nokogiri (~> 1.5.0)

    rails (= 4.2.5) was resolved to 4.2.5, which depends on
      railties (= 4.2.5) was resolved to 4.2.5, which depends on
        actionpack (= 4.2.5) was resolved to 4.2.5, which depends on
rails-html-sanitizer (>= 1.0.2, ~> 1.0) was resolved to 1.0.2, which
depends on
            loofah (~> 2.0) was resolved to 2.0.0, which depends on
              nokogiri (>= 1.5.9)

    rails (= 4.2.5) was resolved to 4.2.5, which depends on
      railties (= 4.2.5) was resolved to 4.2.5, which depends on
        actionpack (= 4.2.5) was resolved to 4.2.5, which depends on
rails-dom-testing (>= 1.0.5, ~> 1.0) was resolved to 1.0.5, which
depends on
            nokogiri (~> 1.6.0)

    roadie-rails was resolved to 1.1.0, which depends on
      roadie (~> 3.1) was resolved to 3.1.1, which depends on
        nokogiri (< 1.7.0, >= 1.5.0)

    capybara was resolved to 2.6.2, which depends on
      xpath (~> 2.0) was resolved to 2.0.0, which depends on
        nokogiri (~> 1.3)
Bundler could not find compatible versions for gem "rails":
  In Gemfile:
    rails (= 4.2.5)

    deface (< 1.0.0) was resolved to 0.9.0, which depends on
      rails (~> 3.1)