StephenGrider / EthereumCasts

Companion repo to an Ethereum/Solidity course on Udemy
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Uncaught promise #12

Open bfbuckler opened 6 years ago

bfbuckler commented 6 years ago

Lecture 90

Compiled successfully but received Uncaught promise in console, I did read in some other post that there maybe change to Metamask in November 2018:

Uncaught (in promise) Error: Provider not set or invalid at Object.InvalidProvider (errors.js:38)

WEB3.JS

import Web3 from 'web3';

const web3 = new Web3(window.web3.currentProivder);

export default web3;

APP.JS

import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';
import web3 from './web3';

class App extends Component {
  render() {
    console.log(web3.version);
    web3.eth.getAccounts().then(console.log);

    return (
      <div className="App">
        <header className="App-header">
          <img src={logo} className="App-logo" alt="logo" />
          <p>
            Edit <code>src/App.js</code> and save to reload.
          </p>
          <a
            className="App-link"
            href="https://reactjs.org"
            target="_blank"
            rel="noopener noreferrer"
          >
            Learn React
          </a>
        </header>
      </div>
    );
  }
}

export default App;

INDEX.JS

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import * as serviceWorker from './serviceWorker';

ReactDOM.render(<App />, document.getElementById('root'));

// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: http://bit.ly/CRA-PWA
serviceWorker.unregister();