ios cocoapods 出现找不到库文件问题？

Question

Undefined symbols for architecture x86_64:

"_OBJC_CLASS_$_PLPlayerOption", referenced from:

  objc-class-ref in MediaStreamingkitViewController.o

"_PLPlayerOptionKeyTimeoutIntervalForMediaPackets", referenced from:

  -[MediaStreamingkitViewController setMediaStreaming] in MediaStreamingkitViewController.o

ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

升级 xcode10.0 才出现的