CocoaPods trunk is moving to be read-only. Read more on the blog, there are 13 months to go.

SHAccountManager 0.2.0

You want to add pod 'SHAccountManager', '~> 0.2' similar to the following to your Podfile:

target 'MyApp' do
  pod 'SHAccountManager', '~> 0.2'
end

Then run a pod install inside your terminal, or from CocoaPods.app.

Alternatively to give it a test run, run the command:

pod try SHAccountManager

This is now abandoned for the better version that's http://github.com/seivan/SHOmniAuthTwitter