I notice there is a pod file in ../Example.What's the use?

[xushao1990]

Recently,I learn cocoapods.then ,I use CRNavigationController.
I use cocoapods to manage my local project.
I has a problem when i write podfile
It's how to link to a podspec use relative paths.
In your podfile,i notice you use :path => "../" ,how does it mean?
And
target "CRNavigationController" do
pod "CRNavigationController"
end

[xushao1990]

I use pod install,show this message "[!] Unable to find a target named CRNavigationController"