"AFNetworking.h" file not found in .pch file
This happened to me when I updated to AFNetworking 2.5.0 from 2.4.1 through Cocoapods.
In XCode go to Product -> Scheme -> Manage Schemes. There delete the project (maintaining the pods) and add the project again. It worked for me.
Hope it helps ;)
for me replacing
#import "AFNetworking.h"
to
#import <AFNetworking/AFNetworking.h>
fix the issue.