Undefined symbols for architecture x86_64:
"_OBJCCLASS$_AIResponseParameter", referenced from:
objc-class-ref in TextRequestViewController.o
"_OBJCCLASS$_AIResponse", referenced from:
objc-class-ref in TextRequestViewController.o
"_OBJCCLASS$_ApiAI", referenced from:
objc-class-ref in AppDelegate.o
objc-class-ref in TextRequestViewController.o
"_OBJCCLASS$_MBProgressHUD", referenced from:
objc-class-ref in TextRequestViewController.o
"_OBJCCLASS$_AIDefaultConfiguration", referenced from:
objc-class-ref in AppDelegate.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
XCODE : 8.2.1 OSX : 10.11.6
Here is what i am receive after pod install
```
Undefined symbols for architecture x86_64: "_OBJCCLASS$_AIResponseParameter", referenced from: objc-class-ref in TextRequestViewController.o "_OBJCCLASS$_AIResponse", referenced from: objc-class-ref in TextRequestViewController.o "_OBJCCLASS$_ApiAI", referenced from: objc-class-ref in AppDelegate.o objc-class-ref in TextRequestViewController.o "_OBJCCLASS$_MBProgressHUD", referenced from: objc-class-ref in TextRequestViewController.o "_OBJCCLASS$_AIDefaultConfiguration", referenced from: objc-class-ref in AppDelegate.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)