crypto.getRandomValues() not supported

user_3288428 0
Viewed 14567

I'm getting this error with npm react-native-webview@9.0.1 when I try to generate a QR code with react-native-qrcode-generator

I'm using react-native with an expo managed workflow. And the thing is it works on iOS, and i only get the error on Android

I searched for a solution myself and I tried installing react-native-get-random-values but that also didn't work.

Any thoughts?

react-native-webview expo react-native
6 Answers

React Native

Install react-native-get-random-values
Import it before uuid:

import 'react-native-get-random-values';
import { v4 as uuidv4 } from 'uuid';
user_92811090

I just had the same issue on android. Works fine on iOS.

I solved it with:

  1. Uninstall the existing one npm uninstall react-native-webview
  2. Use expo install react-native-webview instead.
user_132949780

Here is what worked for me

  1. Install react-native-get-random-values

    npm install --save react-native-get-random-values

  2. Import react-native-get-random-values before webview import (VERY IMPORTANT)

    import 'react-native-get-random-values';
import {WebView} from 'react-native-webview';

For more information, please read this issue.

user_26371650

I made a snack with Expo SDK 37 and the exact versions you mention:

{
  "dependencies": {
    "react-native-webview": "9.0.1",
    "react-native-qrcode-generator": "1.2.1"
  }
}

It works just fine on my Android phone. The issue must be somewhere else in your implementation.

If you've changed versions recently, try to delete your node_modules and install packages again. Double-check my example and let me know if you do something different?

user_13338360

Try to use : npm install --save react-native-webview
It's works for me.

user_91466250
user_11187210
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