React-native iOS构建失败

Question

本机反应原生的iOS版本失败并出现以下错误。

GB-MAC-01s-MacBook-Pro:rrtest muruganandham.kuppan$ react-native run-ios
Found Xcode project rrtest.xcodeproj
Building using "xcodebuild -project rrtest.xcodeproj -configuration Debug -scheme rrtest -destination id=E7283C81-5F0D-4732-BF8B-19DB3C904DA2 -derivedDataPath build"
Ignoring unf_ext-0.0.7.5 because its extensions are not built.  Try: gem pristine unf_ext --version 0.0.7.5
▸ Running script 'Start Packager'
** BUILD FAILED **


Installing build/Build/Products/Debug-iphonesimulator/rrtest.app
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=22):
Failed to install the requested application
The bundle identifier of the application could not be determined.
Ensure that the application's Info.plist contains a value for CFBundleIdentifier.
Print: Entry, ":CFBundleIdentifier", Does Not Exist

我尝试了很少的解决方案，但没有运气。

编辑：其他信息

我已将react native端口更改为8088并在项目中对其进行了修改。

Answer 1

我是如何解决这个问题的？

在端口8081中运行进程

sudo lsof -i :8081

杀了它

sudo kill -9 336

* 336是PID（进程ID）