When internet connection is lost: TypeError: handler is not a function.

I’ve tested this on a real iOS device. I’m using Expo SDK 37

Environment

System: OS: macOS 10.15.4 CPU: (16) x64 Intel® Core™ i9-9880H CPU @ 2.30GHz Memory: 3.01 GB / 32.00 GB Shell: 5.7.1 - /bin/zsh Binaries: Node: 13.2.0 - ~/.nvm/versions/node/v13.2.0/bin/node Yarn: 1.19.2 - /usr/local/bin/yarn npm: 6.14.4 - ~/.nvm/versions/node/v13.2.0/bin/npm Watchman: 4.9.0 - /usr/local/bin/watchman SDKs: iOS SDK: Platforms: iOS 13.4, DriverKit 19.0, macOS 10.15, tvOS 13.4, watchOS 6.2 IDEs: Xcode: 11.4.1/11E503a - /usr/bin/xcodebuild npmPackages: react: 16.9.0 => 16.9.0 react-native: https://github.com/expo/react-native/archive/sdk-37.0.0.tar.gz => 0.61.4 npmGlobalPackages: react-native-cli: 2.0.1

Platforms

iOS on Expo SDK 37.

Versions

• Android:
• iOS: 13.4 (iPhone 7)
• react-native-netinfo: “@react-native-community/netinfo”: “5.5.1”
• react-native: 0.61.4
• react: 16.9.0
• Expo: 37

Description

If I turn off wifi or cellular data, this error appears: Even before I turn of the wifi, I get this error:

[Unhandled promise rejection: TypeError: handler is not a function]
- node_modules/@react-native-community/netinfo/src/internal/state.ts:65:9 in State#_handleInternetReachabilityUpdate
* <anonymous>:null in Set.forEach
* http://127.0.0.1:19001/node_modules/expo/AppEntry.bundle?platform=ios&dev=true&minify=false&hot=false:154509:28 in InternetReachability.State._handleInternetReachabilityUpdate [as _listener]
* http://127.0.0.1:19001/node_modules/expo/AppEntry.bundle?platform=ios&dev=true&minify=false&hot=false:154672:13 in InternetReachability._setIsInternetReachable
- node_modules/@react-native-community/netinfo/src/internal/internetReachability.ts:119:19 in Promise.race.then.then._catch$argument_0
- node_modules/promise/setimmediate/core.js:37:11 in tryCallOne

Reproducible Demo

I’m not sure how to make a reproducible error - this is a legacy project that I’m trying to fix. But if I go to this file and erase line 65, the yellow warning message goes away - but obviously doesn’t fix the issue (node_modules/@react-native-community/netinfo/src/internal/state.ts:65:9)

This is my package.json:

{
  "main": "node_modules/expo/AppEntry.js",
  "private": true,
  "dependencies": {
    "@expo/vector-icons": "^10.0.0",
    "@mapbox/polyline": "^0.2.0",
    "@react-native-community/art": "react-native-community/art",
    "@react-native-community/masked-view": "0.1.6",
    "@react-native-community/netinfo": "5.5.1",
    "@redux-offline/redux-offline": "git+https://github.com/alanjudson/redux-offline.git",
    "@shoutem/ui": "^2.0.3",
    "eon-map": "^1.2.2",
    "eslint": "^4.19.1",
    "ex-react-native-i18n": "0.0.3",
    "expo": "^37.0.7",
    "expo-asset": "~8.1.4",
    "expo-camera": "~8.2.0",
    "expo-cli": "^3.18.2",
    "expo-constants": "~9.0.0",
    "expo-file-system": "~8.1.0",
    "expo-font": "~8.1.0",
    "expo-image-manipulator": "~8.1.0",
    "expo-location": "~8.1.0",
    "expo-media-library": "~8.1.0",
    "expo-permissions": "^8.1.0",
    "expo-web-browser": "~8.1.0",
    "geolib": "^2.0.24",
    "moment": "^2.21.0",
    "native-base": "^2.13.12",
    "prop-types": "^15.6.0",
    "pubnub": "^4.20.2",
    "pubnub-react": "^1.2.0",
    "react": "16.9.0",
    "react-devtools": "^4.6.0",
    "react-native": "https://github.com/expo/react-native/archive/sdk-37.0.0.tar.gz",
    "react-native-app-link": "^0.4.1",
    "react-native-aws3": "0.0.8",
    "react-native-calendars": "^1.16.1",
    "react-native-gesture-handler": "^1.6.1",
    "react-native-i18n": "^2.0.10",
    "react-native-image-resizer": "^1.0.0",
    "react-native-indicators": "^0.17.0",
    "react-native-keyboard-aware-scroll-view": "^0.9.1",
    "react-native-linear-gradient": "~2.5.6",
    "react-native-lock": "^0.6.1",
    "react-native-maps": "0.26.1",
    "react-native-maps-directions": "^1.4.1",
    "react-native-modal": "^11.5.6",
    "react-native-phone-call": "^1.0.9",
    "react-native-photo-view": "github:shoutem/react-native-photo-view#0ffa1481f6b6cb8663cb291b7db1d6644440584d",
    "react-native-reanimated": "~1.7.0",
    "react-native-responsive-dimensions": "^1.0.2",
    "react-native-safe-area-context": "^0.7.3",
    "react-native-screens": "~2.2.0",
    "react-native-tab-view": "0.0.74",
    "react-native-vector-icons": "^6.6.0",
    "react-native-webview": "^7.5.0",
    "react-navigation": "^4.3.8",
    "react-navigation-stack": "^2.3.13",
    "react-redux": "^5.0.6",
    "redux": "^3.7.2",
    "redux-persist": "^5.10.0",
    "redux-saga": "^0.16.0",
    "webpack": "^4.28.4"
  },
  "devDependencies": {
    "eslint-config-airbnb": "^16.1.0",
    "eslint-plugin-import": "^2.8.0",
    "eslint-plugin-jsx-a11y": "^6.0.3",
    "eslint-plugin-react": "^7.5.1",
    "react-native-debugger-open": "^0.3.15",
    "schedule": "^0.4.0"
  },
  "scripts": {
    "start": "expo start",
    "android": "expo start --android",
    "ios": "expo start --ios",
    "eject": "expo eject"
  }
}

If there’s anything more I can provide, please let me know. First time posting an issue, ever.

[kidaww]

Now i fixed it like that. No one listener string type now at first aurgument

[Creativemast]

Now i fixed it like that. No one listener string type now at first aurgument

where to add this functions