Deploying with Truffle

Question

I deployed a contract through remix and then I run the following code

MyContract.deployed()
    .then(instance => {
    c = instance;
    return c.getCreator();
})
    .then(result => {
    console.log(result);
})
    .catch(error => {
    console.log(`${error}`);
})

It spits an error saying Error: HelloWorld has not been deployed to detected network (network/artifact mismatch)

HelloWorld is just a JSON file that contains my ABI/Binary/etc generated from truffle

Answer 1

Make sure that:

• the truffle web3 provider is connected to the same network which you deployed to.
• the ABI file contains the deployed contract address.

You can also specify the contract address to use:

MyContract.at(contractAddress)
.then(instance => {
  // ...
})

If deploying make sure that:

• You have a wallet connected. You can use truffle-hdwallet-provider.

  var provider = new HDWalletProvider(mnemonic, 'https://mainnet.infura.io:443')

• You are including from in the options. You can also set it using defaults(). See truffle-contract documentation.