swift项目，当我调用友盟分享类时，编译报错：ld: Undefined symbols

1.cocoapods集成：

2.桥接文件引用：

3.appdelegate初始化（没有问题）：

4.shareView试图调用分享：

5.编译报错（第4步代码注释编译正常）：

ld: warning: Could not find or use auto-linked framework 'CoreAudioTypes': framework 'CoreAudioTypes' not found ld: Undefined symbols:

_OBJC_CLASS_$_UMShareWebpageObject, referenced from:

in ShareView o

_OBJC_CLASS_$ _UMSocialManager, referenced from:

in ShareView.o

_OBJC_CLASS_$_UMSocialMessageObject, referenced from:

in ShareView.o

clang: error: linker command failed with exit code 1 (use -v to see invocation)