React Native踩过的坑。。。

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1.》》》执行react-native run-ios 报错

我的操作过程就是:
react-native init myApp
cd myApp
react-native run-ios
出现问题:
** BUILD FAILED **

The following commands produced analyzer issues:
Analyze /Users/scdzs5/wh/project/hpApp/node_modules/react-native/ReactCommon/yoga/yoga/YGNodeList.c
Analyze /Users/scdzs5/wh/project/hpApp/node_modules/react-native/ReactCommon/yoga/yoga/Yoga.c
(2 commands with analyzer issues)

The following build commands failed:
PhaseScriptExecution Install\ Third\ Party /Users/scdzs5/wh/project/hpApp/ios/build/Build/Intermediates/React.build/Debug-iphonesimulator/double-conversion.build/Script-190EE32F1E6A43DE00A8543A.sh
(1 failure)

Installing build/Build/Products/Debug-iphonesimulator/hpApp.app
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
Failed to install the requested application
An application bundle was not found at the provided path.
Provide a valid path to the desired application bundle.
Print: Entry, ":CFBundleIdentifier", Does Not Exist

Command failed: /usr/libexec/PlistBuddy -c Print:CFBundleIdentifier build/Build/Products/Debug-iphonesimulator/hpApp.app/Info.plist
Print: Entry, ":CFBundleIdentifier", Does Not Exist

解决方案:
测试版本:
"react": "16.0.0-alpha.12","react-native": "0.45.0"
切换成下面的版本就可以了:
"react": "16.0.0-alpha.6","react-native": "0.44.3"
具体操作:删除node-modules文件夹,修改pakage.json文件,然后执行npm install

2.》》》 Packager can't listen on port 8081

image.png

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