I've been following Dapp University's videos on how to make IPFS uploads with Euthereum Smart contracts, and after I manage to 'npm run start' in the command line it opens up the HTML, but it always gives me this error: 'No web3 instance injected, using local web3.'

enter image description here

Here is the link to the first video: https://www.youtube.com/watch?v=SkMH0WeRYtg&t=1s

And here is the link to his code: https://github.com/dappuniversity/ipfs_image_uploader

I have a suspicion that the issue might lie within the getWeb3.js file, but maybe you had the same issue and know how to complete the tutorial, in any case, I would really appreciate your help!

This is the code of the getWeb3.js file :

import Web3 from 'web3'

let getWeb3 = new Promise(function(resolve, reject) { // Wait for loading completion to avoid race conditions with web3 injection timing. window.addEventListener('load', function() { var results var web3 = window.web3

// Checking if Web3 has been injected by the browser (Mist/MetaMask)
if (typeof window.web3 !== 'undefined') {
  // Use Mist/MetaMask's provider.
  web3 = new Web3(window.web3.currentProvider)

  results = {
    web3: web3

  console.log('Injected web3 detected.');

} else {
  // Fallback to localhost if no web3 injection. We've configured this to
  // use the development console's port by default.
  var provider = new Web3.providers.HttpProvider('')

  web3 = new Web3(provider)

  results = {
    web3: web3

  console.log('No web3 instance injected, using Local web3.');


1 Answer 1


// Checking if Web3 has been injected by the browser (Mist/MetaMask)

You need to install the MetaMask extension

  • I have the metamask extension for google chrome
    – anthonyacc
    May 20, 2019 at 10:10
  • 1
    Then you will need to enable it (turn privacy off), because MetaMask is in privacy mode by default
    – KNK
    May 20, 2019 at 10:21

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