React Native，AwesomeProject，react-native run-ios：** BUILD FAILED **
我尝试使用AwesomeProject运行我的第一个React Native …在“react-native run-ios”之后，我得到了：
**建筑失败**
以下命令产生分析器问题：分析RCTLocationObserver.m（带分析器问题的1命令）
以下构建命令失败：CompileC /Users/nicolasjoly/Devel/AwesomeProject/ios/build/Build/Intermediates/RCTWebSocket.build/Debug-iphonesimulator/RCTWebSocket.build/Objects-normal/x86_64/RCTSRWebSocket.o RCTSRWebSocket.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler Analyze RCTLocationObserver.m CompileC /Users/nicolasjoly/Devel/AwesomeProject/ios/build/Build/Intermediates/RCTNetwork.build/Debug-iphonesimulator/RCTNetwork.build/ Objects-normal / x86_64 / RCTNetworkTask.o RCTNetworkTask.m正常x86_64 objective -c com.apple.compilers.llvm.clang.1_0.compiler（3次失败）安装build / Build / Products / Debug-iphonesimulator / AwesomeProject.app没有设备被启动了。 打印：条目，“：CFBundleIdentifier”，不存在/Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/node_modules/promise/lib/done.js:10 throw err; ^
错误：命令失败：/ usr / libexec / PlistBuddy -c打印：CFBundleIdentifier build / Build / Products / Debug-iphonesimulator / AwesomeProject.app / Info.plist Print：Entry，“：CFBundleIdentifier”，不存在
at checkExecSyncError (child_process.js:464:13) at Object.execFileSync (child_process.js:484:13) at _runIOS (/Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/local-cli/runIOS/runIOS.js:82:34) at /Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/local-cli/runIOS/runIOS.js:24:5 at tryCallTwo (/Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/node_modules/promise/lib/core.js:45:5) at doResolve (/Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/node_modules/promise/lib/core.js:200:13) at new Promise (/Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/node_modules/promise/lib/core.js:66:3) at Array.runIOS (/Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/local-cli/runIOS/runIOS.js:23:10) at Object.run (/Users/nicolasjoly/Devel/AwesomeProject/node_modules/react-native/local-cli/cliEntry.js:88:13) at Object. (/usr/local/lib/node_modules/react-native-cli/index.js:88:7)
感谢您的帮助 ！！
尝试运行react-native upgrade ，然后对所有订阅消息说“是”。 之后，再次尝试react-native run-ios
首先，运行命令react-native upgrade 。 然后，删除您的ios和android文件夹。 然后，运行react-native eject 。 然后，运行react-native-git-upgrade 。 然后，运行react-native link 。
最后，再次运行react-native run-ios命令。