【RN】解决:React Native build error: Undefined symbols for architecture x86_app

缘起

当看到这边文章的时候Jeverson已经从NativeiOS渐行渐远了。从另外一方面来说，拥抱变化，向跨平台ReactNative进了一小步。废话少来，直接抛出问题。

运行

npm run ios
yarn ios

结果

** BUILD FAILED **


The following build commands failed:
        Ld /Users/jeversonjee/Library/Developer/Xcode/DerivedData/rnTemplate-dyxbknpwkimmmtbfkrlqejlhshic/Build/Products/Debug-iphonesimulator/rnTemplate.app/rnTemplate normal (in target 'rnTemplate' from project 'rnTemplate')
(1 failure)

error Command failed with exit code 1.

分析

这个结果，告诉我编译iOS代码的时候编译失败了；OK使用Xcode打开应用，我们来看看具体的错误是什么。

ld: warning: directory not found for option '-L/Users/jeversonjee/Downloads/XXX项目名称/ios/WechatSDK'
ld: warning: Could not find or use auto-linked library 'swift_Concurrency'
ld: warning: Could not find or use auto-linked library 'swiftFileProvider'
ld: warning: Could not find or use auto-linked library 'swiftDataDetection'
Undefined symbols for architecture x86_64:
  "__swift_FORCE_LOAD_$_swiftDataDetection", referenced from:
      __swift_FORCE_LOAD_$_swiftDataDetection_$_YogaKit in libYogaKit.a(YGLayoutExtensions.o)
     (maybe you meant: __swift_FORCE_LOAD_$_swiftDataDetection_$_YogaKit)
  "__swift_FORCE_LOAD_$_swiftFileProvider", referenced from:
      __swift_FORCE_LOAD_$_swiftFileProvider_$_YogaKit in libYogaKit.a(YGLayoutExtensions.o)
     (maybe you meant: __swift_FORCE_LOAD_$_swiftFileProvider_$_YogaKit)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Undefined symbol: __swift_FORCE_LOAD_$_swiftDataDetection

Undefined symbol: __swift_FORCE_LOAD_$_swiftFileProvider