Question

Why i am still getting this error even after linking fat library

Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_NgnEngine", referenced from:
      objc-class-ref in ViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

and linking everything in “User-Defined

I am following the instruction which written here Link ios-ngn-stak to your app
any help please, this is tiring me and it is my senior project

Answer 1

please refer this two link for getting solution if your issue:-

Error : "_OBJC_CLASS_$_NgnEngine"

Xcode with iOS – Creating a library in a way that is easy to run in debug mode, distribute, iterate