未定义的符号：将Unity+Vuforia嵌入Native SWIFT项目时的_$_PHImageM

我目前正在尝试将一个Unitu+Vuforia输出项目嵌入到当前的本地快速iOS项目中。我跟着这个文章很好，但是在最后的构建部分，这些错误会弹出：

Undefined symbols for architecture arm64:
  "_OBJC_CLASS_$_PHImageManager", referenced from:
      objc-class-ref in NativeGallery.o
  "_OBJC_CLASS_$_PHImageRequestOptions", referenced from:
      objc-class-ref in NativeGallery.o
  "_OBJC_CLASS_$_PHAssetCollection", referenced from:
      objc-class-ref in NativeGallery.o
  "_OBJC_CLASS_$_PHFetchOptions", referenced from:
      objc-class-ref in NativeGallery.o
  "_OBJC_CLASS_$_PHAssetCollectionChangeRequest", referenced from:
      objc-class-ref in NativeGallery.o
  "_kUTTypeMovie", referenced from:
      +[UNativeGallery pickMedia:savePath:] in NativeGallery.o
  "_OBJC_CLASS_$_PHAssetChangeRequest", referenced from:
      objc-class-ref in NativeGallery.o
  "_OBJC_CLASS_$_PHPhotoLibrary", referenced from:
      objc-class-ref in NativeGallery.o
  "_OBJC_CLASS_$_PHAsset", referenced from:
      objc-class-ref in NativeGallery.o
  "_kUTTypeImage", referenced from:
      +[UNativeGallery pickMedia:savePath:] in NativeGallery.o
      +[UNativeGallery imagePickerController:didFinishPickingMediaWithInfo:] in NativeGallery.o
  "_kUTTypeVideo", referenced from:
      +[UNativeGallery pickMedia:savePath:] in NativeGallery.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我已经检查了所提供的链接，并试图自己修复它(尝试过清理、放弃Xcode、重新链接编译源以及读取/构建统一并不有效)。没有结果。有人知道怎么修吗？统一版本：2018.4.12f1与统一中心。Xcode版本：11.3(11C29)。

P.S：如果有人有一个很好的教程/示例，说明如何使用Vuforia SDK进行本地IOS Xcode会很好，因为我不介意将项目更改为完全本机。