Everything was working fine with my project Xcode 7.3.1
but then I added a new pod and run "pod install" and started to get errors about header files not found.
This image is an example of the error:
I was reading that sometimes some references to PODS_HEADERS_SEARCH_PATHS
disappear so I just want to know how to solve this, where do I have to search for that references to make sure that is missing and how to add that reference.