Cocoapods install fail about asyncphotobrowser HOT 5 CLOSED

pod 'AsyncPhotoBrowser', :git => 'https://github.com/DJBen/AsyncPhotoBrowser.git', :tag => '0.2.1'

pod 'AsyncPhotoBrowser', :git => 'https://github.com/DJBen/AsyncPhotoBrowser.git', :tag => '0.2.1'

Updating local specs repositories

CocoaPods 0.39.0.beta.5 is available.
To update use: `gem install cocoapods --pre`
[!] This is a test version we'd love you to try.

For more information see http://blog.cocoapods.org
and the CHANGELOG for this version http://git.io/BaH8pQ.

Analyzing dependencies
Pre-downloading: `AsyncPhotoBrowser` from `https://github.com/DJBen/AsyncPhotoBrowser.git`, tag `0.2.1`
[!] Unable to satisfy the following requirements:

- `AsyncPhotoBrowser (from `https://github.com/DJBen/AsyncPhotoBrowser.git`, tag `0.2.1`)` required by `Podfile`

platform :ios, '9.0'
use_frameworks!

post_install do |installer|
    installer.pods_project.targets.each do |target|
        target.build_configurations.each do |config|
            config.build_settings["IPHONEOS_DEPLOYMENT_TARGET"] = "8.0"
        end
    end
end

target :AsyncPhotoBrowserDemo do
    pod 'AsyncPhotoBrowser', :git => 'https://github.com/DJBen/AsyncPhotoBrowser.git', :tag => '0.2.1'
end

pod 'FastImageCache', '~> 1.3'
pod 'Alamofire'
pod 'Cartography', '~> 0.6'

platform :ios, '8.0'
use_frameworks!

pod 'FastImageCache', '~> 1.3'
pod 'Alamofire'
pod 'Cartography'