Undefined symbols when intergrate Admob iOS?

I face this . I try every things , check framework import list thousands time . But no hope . pls help
Cocos2d-x v3.10 , admob SDK 7.7.0

Undefined symbols for architecture x86_64:
OBJC_CLASS$_MPVolumeView”, referenced from:
objc-class-ref in GoogleMobileAds(flat-x86_64)
ld: symbol(s) not found for architecture x86_64