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I am getting Error: Project ID is required deploying to ropsten in truffle

I am getting the following error:

Error: PollingBlockTracker –
encountered an error while attempting to update latest block:

Error: project ID is required

at C:\Users\myuser\Code Projects\sdfsd\node_modules@trufflesuite\web3-provider-engine\subproviders\provider.js:18:36

ropsten: {
  provider: new HDWalletProvider(mnemonic, ""),
  network_id: 3,
  gas: 4000000

live: {
  provider: () =>
  new HDWalletProvider(mnemonic,''),
  network_id: '*',
  gasPrice: 25000000000,
  gas: 5000000,
  confirmations: 2

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