Undefined symbols for architecture x86_64:
"OBJC_CLASS$_QQApiInterface", referenced from:
objc-class-ref in AppDelegate.o
"OBJC_CLASS$_ShareSDK", referenced from:
objc-class-ref in AppDelegate.o
objc-class-ref in RecipeDetailViewController.o
objc-class-ref in showViewController.o
objc-class-ref in video_show.o
"OBJC_CLASS$_TencentOAuth", referenced from:
objc-class-ref in AppDelegate.o
"OBJC_CLASS$_WXApi", referenced from:
objc-class-ref in AppDelegate.o

1.把1.选中Targets—>Build Settings—>Architectures。
把build active architectures only 改为 NO。

2. 把最下面的Valid Architectures中的arm64参数删掉就可以了
   或者：
   双击Architectures，选择other，删除$(ARCH_STANDARD)，然后增加armv7和armv7s（写上：$(ARCHS_STANDARD_32_BIT)）。
   3.clean 再build。
   结果设置如下图：

   
   

设置完成后，问题顺利解决，大家有更好的解决方案，欢迎讨论！