メモ：ReactNativeデバッグ時のコマンド

エラー："Port already in use", "No bundle url present" など

lsof -i :8081
kill -9 <PID>

Source:
https://facebook.github.io/react-native/docs/troubleshooting

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エラー："does not exist in the Haste Mmodule map"など

• キャッシュのクリーンアップ
  watchman watch-del-all
rm -rf node_modules && npm install
rm -rf /tmp/metro-bundler-cache-*
rm -fr /tmp/haste-map-react-native-packager-*

• Buildキャッシュのクリーンアップ
  rm -f /ios/build

まとめると
rm -f /ios/build && watchman watch-del-all && rm -fr /tmp/haste-map-react-native-packager-* && rm -rf /tmp/metro-bundler-cache-*

source:
https://github.com/facebook/react-native/issues/12754
https://gist.github.com/RidaRidss/27e6de16af0a742354f60bf7ea6c9111

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エラー: Unable to execute JS call: __fbBatchedBride is undefined

manually bundle

react-native bundle --dev false --platform ios --entry-file index.ios.js --bundle-output ios/main.jsbundle --assets-dest ./ios

regenerate the main.jsbundle file

react-native bundle --entry-file ./index.ios.js --platform ios --bundle-output ios/main.jsbundle

source: https://github.com/facebook/react-native/issues/18472

エラー：application has not been registered

index.jsの<App Name>をupdate
source:
https://stackoverflow.com/questions/38340360/react-native-application-has-not-been-registered-error

エラー:The following build commands failed: Analyze node_modules/react-native/ReactCommon/yoga/yoga/YGNodeList.c

rm -rf ios/build/ModuleCache/*
then
react-native run-ios
source:
https://github.com/facebook/react-native/issues/12609

rm -rf ~/.rncache
https://github.com/facebook/react-native/issues/14423