iOS集成ReactNative中遇到的問(wèn)題：

問(wèn)題一：

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Ld /Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Products/Debug-iphonesimulator/RNTest.app/RNTest normal x86_64
    cd /Users/never/Desktop/RNTest
    export IPHONEOS_DEPLOYMENT_TARGET=9.0
    export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator11.2.sdk -L/Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Products/Debug-iphonesimulator -L/Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Products/Debug-iphonesimulator/React -L/Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Products/Debug-iphonesimulator/Yoga -F/Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Products/Debug-iphonesimulator -filelist /Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Intermediates.noindex/RNTest.build/Debug-iphonesimulator/RNTest.build/Objects-normal/x86_64/RNTest.LinkFileList -Xlinker -rpath -Xlinker @executable_path/Frameworks -mios-simulator-version-min=9.0 -dead_strip -Xlinker -object_path_lto -Xlinker /Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Intermediates.noindex/RNTest.build/Debug-iphonesimulator/RNTest.build/Objects-normal/x86_64/RNTest_lto.o -Xlinker -export_dynamic -Xlinker -no_deduplicate -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc -fobjc-link-runtime -ObjC -lReact -lYoga -lstdc++ -framework JavaScriptCore -Xlinker -sectcreate -Xlinker __TEXT -Xlinker __entitlements -Xlinker /Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Intermediates.noindex/RNTest.build/Debug-iphonesimulator/RNTest.build/RNTest.app.xcent -lYoga -lReact -lPods-RNTest -Xlinker -dependency_info -Xlinker /Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Intermediates.noindex/RNTest.build/Debug-iphonesimulator/RNTest.build/Objects-normal/x86_64/RNTest_dependency_info.dat -o /Users/never/Library/Developer/Xcode/DerivedData/RNTest-bcuehswcjhrrwifpskhqtuwjtwio/Build/Products/Debug-iphonesimulator/RNTest.app/RNTest

Undefined symbols for architecture x86_64:
  "_JSNoBytecodeFileFormatVersion", referenced from:
      +[RCTJavaScriptLoader loadBundleAtURL:onProgress:onComplete:] in libReact.a(RCTJavaScriptLoader.o)
      +[RCTJavaScriptLoader attemptSynchronousLoadOfBundleAtURL:runtimeBCVersion:sourceLength:error:] in libReact.a(RCTJavaScriptLoader.o)
  "facebook::react::IRemoteConnection::~IRemoteConnection()", referenced from:
      RemoteConnection::~RemoteConnection() in libReact.a(RCTInspector.o)
  "facebook::react::systemJSCWrapper()", referenced from:
      -[RCTSamplingProfilerPackagerMethod handleRequest:withResponder:] in libReact.a(RCTSamplingProfilerPackagerMethod.o)
      -[RCTDevSettings isJSCSamplingProfilerAvailable] in libReact.a(RCTDevSettings.o)
      -[RCTDevSettings toggleJSCSamplingProfiler] in libReact.a(RCTDevSettings.o)
  "facebook::react::parseTypeFromHeader(facebook::react::BundleHeader const&)", referenced from:
      +[RCTJavaScriptLoader attemptSynchronousLoadOfBundleAtURL:runtimeBCVersion:sourceLength:error:] in libReact.a(RCTJavaScriptLoader.o)
  "facebook::react::customJSCWrapper()", referenced from:
      ____ZL11getInstancev_block_invoke in libReact.a(RCTInspector.o)
      -[RCTSamplingProfilerPackagerMethod handleRequest:withResponder:] in libReact.a(RCTSamplingProfilerPackagerMethod.o)
      -[RCTDevSettings isJSCSamplingProfilerAvailable] in libReact.a(RCTDevSettings.o)
      -[RCTDevSettings toggleJSCSamplingProfiler] in libReact.a(RCTDevSettings.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

解決方案：

pods增加：'BatchedBridge', #RN版本高于0.45之后必須導(dǎo)入

在晴明網(wǎng)站教程里沒(méi)有找到需要這個(gè)配置萧求，只有在更新日志中說(shuō)明必須增加此項(xiàng)

問(wèn)題二：

'RCTBundleURLProvider.h' file not found

常規(guī)解決方法：

1. 打開(kāi)Mac里面的終端幌羞，進(jìn)入項(xiàng)目所在的文件夾目錄蒋失；
2. 把項(xiàng)目里面的 node_modules 文件夾刪除掉惑朦，然后執(zhí)行 npm install 命令
3. npm install安裝完成后豁护， 執(zhí)行react-native upgrade命令
4. 最后重新打開(kāi)Xcode,clean一下律胀，應(yīng)該就沒(méi)有問(wèn)題了伯襟。
5. 如果依然報(bào)錯(cuò)，使用以下升級(jí)版解決方案：

探索升級(jí)版解決方案：

/**更換為以下導(dǎo)入方式*/
#import <React/RCTBundleURLProvider.h>

問(wèn)題三：

問(wèn)題三.png

解決方案：

問(wèn)題三解決方案.png