Podfile from example doesn't work

[gerchicov-bp]

pod install
Re-creating CocoaPods due to major version update.
Analyzing dependencies
[!] The dependency `HCYoutubeParser (~> 0.0)` is not used in any concrete target.
The dependency `IGVimeoExtractor (~> 1.2)` is not used in any concrete target.

[youngliuxx]

You need to change to this.

platform :ios, '8.0'

target "DemoApp" do
    pod 'HCYoutubeParser'
    pod 'IGVimeoExtractor'
end