I am trying to add the Facebook SDK to my iOS 8 Objective-C app in Xcode. I did the install according to the FB-dev instructions. However, I get a \"Could not build
If you are having issue with 'FBSDKCoreKit' You can try below solutions:
Goto Build Setting and search for "allow non-modular" and Set
"Allow Non-modular Includes in Framework modules" flag to YES

Go to Document/FacebookSDK folder
then goto FBSDKCoreKit.framework
In this folder Remove Modules folder. Then add the FacebookSDK library in your project.
Set the Framework search path to "~/Documents/FacebookSDK"
Steps to find Framework search Path
Goto build setting of the project and search for "framework search path".
Then add "~/Documents/FacebookSDK"

Edit:
please open the Framework search path in Facebook app and copy paste all the paths mentioned over there in your application.Similar to the path i have attached in below screen shots

This will fix your problem