Rails 4我无法安装gem

Question

Hello I want to install these gem 'activeadmin' , gem "meta_search", '>= 1.1.0.pre' gems to my project but I got error like this

 Bundler could not find compatible versions for gem "actionpack":
  In snapshot (Gemfile.lock):
    actionpack (4.0.2)

  In Gemfile:
    meta_search (>= 1.1.0.pre) ruby depends on
      actionpack (~> 3.1.0.alpha) ruby

How I can solve these problems

Answer 1

Active Admin has a few other dependencies as well. Check this out Active Admin install with Rails 4 .

Copy and paste all the gems (in the top answer) to your gemfile and you should not have any issues running bundle.

Answer 2

just put "meta_search", '>= 1.1.0.pre' before gem 'activeadmin'
this should solve your problem

Answer 3

Meta_search doesn't support rails 4. So you're getting a conflict.

Suggest you have a look at Ransack instead, which is basically a ground up rewrite of meta-search. If you're using rails 3, then you need to specify this in your Gemfile.

Answer 4

 gem 'devise',              github: 'plataformatec/devise'
gem 'responders',          github: 'plataformatec/responders'
gem 'inherited_resources', github: 'josevalim/inherited_resources'
gem 'ransack',             github: 'ernie/ransack'
gem 'activeadmin',         github: 'gregbell/active_admin'
gem 'formtastic',          github: 'justinfrench/formtastic'

it's worked