rails 4: In Gemfile: meta_search (>= 0) ruby depends on actionpack (~> 3.1) ruby rails (= 4.0.0) ruby depends on actionpack (4.0.0)

[Mashpy]

i have written in the gem file -

 gem "meta_search", :git => "git://github.com/ernie/meta_search.git" 

but gtting this error message -

  In Gemfile:
    meta_search (>= 0) ruby depends on
      actionpack (~> 3.1) ruby

    rails (= 4.0.0) ruby depends on
      actionpack (4.0.0)

this is the link of my gem lock file - http://pastebin.com/d5ydNJ0B

how can i solve this problem ?

[phoet]

Please do not crosspost your problems: http://stackoverflow.com/questions/19899550/rails-4-i-can-not-install-meta-search-gem-file/19903642#19903642

[Mashpy]

sorry. i will not do this same mistake again.
Thanks for help.