Alert not working ('buttons.slice' is undefined)

The Alert function no longer works in my project. I’m attempting to create an alert when the user encounters an error, but instead a JS error is thrown.

TypeError: buttons.slice is not a function. (In 'buttons.slice(0, 3)', 'buttons.slice' is undefined)
  at alert(/Users/craig/Dev/oddBox/node_modules/react-native/Libraries/Alert/Alert.js:69:24)
  at tryCatch(/Users/craig/Dev/oddBox/node_modules/regenerator-runtime/runtime.js:45:44)
  at invoke(/Users/craig/Dev/oddBox/node_modules/regenerator-runtime/runtime.js:271:30)
  at tryCatch(/Users/craig/Dev/oddBox/node_modules/regenerator-runtime/runtime.js:45:44)
  at invoke(/Users/craig/Dev/oddBox/node_modules/regenerator-runtime/runtime.js:135:28)
  at Promise.resolve.then$argument_1(/Users/craig/Dev/oddBox/node_modules/regenerator-runtime/runtime.js:147:19)
  at tryCallOne(/Users/craig/Dev/oddBox/node_modules/promise/setimmediate/core.js:37:14)
  at setImmediate$argument_0(/Users/craig/Dev/oddBox/node_modules/promise/setimmediate/core.js:123:25)
  at _callTimer(/Users/craig/Dev/oddBox/node_modules/react-native/Libraries/Core/Timers/JSTimers.js:146:14)
  at _callImmediatesPass(/Users/craig/Dev/oddBox/node_modules/react-native/Libraries/Core/Timers/JSTimers.js:194:17)
  at callImmediates(/Users/craig/Dev/oddBox/node_modules/react-native/Libraries/Core/Timers/JSTimers.js:458:30)
  at callImmediates([native code])
  at flushedQueue([native code])
  at invokeCallbackAndReturnFlushedQueue([native code])

React Native version:

System:
    OS: macOS Mojave 10.14.3
    CPU: (8) x64 Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
    Memory: 157.77 MB / 16.00 GB
    Shell: 3.2.57 - /bin/bash
  Binaries:
    Node: 12.13.1 - /usr/local/bin/node
    Yarn: 1.21.1 - ~/.yarn/bin/yarn
    npm: 6.12.1 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  SDKs:
    iOS SDK:
      Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
    Android SDK:
      API Levels: 25, 26, 28
      Build Tools: 23.0.1, 25.0.0, 26.0.1, 26.0.2, 26.0.3, 28.0.3
      System Images: android-28 | Intel x86 Atom_64, android-28 | Google APIs Intel x86 Atom, android-28 | Google APIs Intel x86 Atom_64
  IDEs:
    Android Studio: 3.5 AI-191.8026.42.35.6010548
    Xcode: 10.1/10B61 - /usr/bin/xcodebuild
  npmPackages:
    react: ~16.9.0 => 16.9.0
    react-native: https://github.com/expo/react-native/archive/sdk-36.0.0.tar.gz => 0.61.4
  npmGlobalPackages:
    react-native-cli: 2.0.1
    react-native: 0.59.4

Steps To Reproduce

1. Create alert function

export const createAlert = (title, msg) => {
    Alert.alert(
      title,
      msg,
      [
        { text: "OK", onPress: () => console.log("OK Pressed") }
      ],
      { cancelable: true }
    );
}

1. Call function: createAlert("Error", "I am an error")

Describe what you expected to happen: Expect the alert to show on the device, but instead the exception is caught by Sentry.

[abdirisakmo]

this is worked for me Alert.alert(‘Error’, ‘Please enter some text’, [ { text: “OK”, onPress: () => console.log(“OK Pressed”) } ], { cancelable: true });

[JohnFelixLim]

Maybe you forgot the second parameter.

Alert.alert( “title here”, “”, // empty string [ { text: “OK”, onPress: () => console.log(“OK Pressed”) } ], { cancelable: true } );