Xcode build works for simulator but not device

Question

I have looked everywhere and done everything which was given but there is still one error which is not given anywhere. I have Xcode version 8.2beta and Unity version 5.5.2. The project build works for simulator, but when I build for device, this error is generated

Undefined symbols for architecture armv7:
  "_UnityRate_sendToRate", referenced from:
      _UnityRate_UnityRate_sendToRate_m3793811931 in Bulk_Assembly-CSharp_5.o
      _UnityRate_SendToRating_m1702357742 in Bulk_Assembly-CSharp_5.o
     (maybe you meant: _UnityRate_UnityRate_sendToRate_m3793811931)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)