when import eosjs package

[yankunsam]

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Environment

Run react-native info in your terminal and paste its contents here.
React Native Environment Info:
System:
OS: macOS High Sierra 10.13.5
CPU: x64 Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
Memory: 155.26 MB / 8.00 GB
Shell: 5.3 - /bin/zsh
Binaries:
Node: 10.7.0 - /usr/local/bin/node
Yarn: 1.9.2 - /usr/local/bin/yarn
npm: 6.2.0 - /usr/local/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 11.4, macOS 10.13, tvOS 11.4, watchOS 4.3
Android SDK:
Build Tools: 26.0.3, 27.0.3
API Levels: 24, 26, 27
IDEs:
Android Studio: 3.1 AI-173.4720617
Xcode: 9.4.1/9F2000 - /usr/bin/xcodebuild
npmPackages:
react: 16.2.0 => 16.2.0
react-native: 0.56.0 => 0.56.0
npmGlobalPackages:
create-react-native-app: 1.0.0
react-native-cli: 2.0.1

Description

Describe your issue in detail. Include screenshots if needed. If this is a regression, let us know.
Here is my code in App.js,

'''
import Eos from 'oasisjs';

let config = {
chainId: "c40a90d6bcb4b9b2c2d4c0916ee97a29af42a420372af44fa4f538ddef9e6b83",
keyProvider: keyProviders,
// httpEndpoint: 'http://192.168.0.106:8888',
expireInSeconds: 60,
broadcast: true,
verbose: false,
sign: true
};
var eos = Eos(config);
'''

Reproducible Demo

Let us know how to reproduce the issue. Include a code sample, share a project, or share an app that reproduces the issue using https://snack.expo.io/. Please follow the guidelines for providing a MCVE: https://stackoverflow.com/help/mcve

reactive native: undefined is not an object (evaluating 'superCtor.prototype') error.

[stale]

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require the community's attention? This issue may be closed if no further activity occurs. You may also label this issue as "For Discussion" or "Good first issue" and I will leave it open. Thank you for your contributions.