Truffle invalid address

Question

With Truffle 3.0 when I call one of my contract's function, in console I have this error:

Uncaught (in promise) Error: invalid address

I found this workaround, and in my code I try this with no success.

this.web3Provided.eth.defaultAccount=this.web3Provided.eth.coinbase;

In truffle doc they sat I can set a from address in my config, but also this not work. from: '0x8c384d9f226ea92c99f7aa83340714a6f82a3161'

I also try with this after I have imported all truffle.config file:

TruffleConfig.networks[NODE_ENV].from = this.web3Provided.eth.coinbase;

Please help me.

Answer 1

Thank's to Truffle Gitter channel I figured out. I have to call defaults function on my truffle-contract's abstraction.

MyContract.defaults({from: …}) 

https://github.com/trufflesuite/truffle/tree/develop/packages/truffle-contract

buildContracts() {
    let contracts = {};
    let meta;

    this.props.contracts.forEach( _contract => {
      let {contract_name = ''} = _contract;
      meta = contract(_contract);
      meta.setProvider(this.web3Provided.currentProvider);
      meta.defaults({from: this.web3Provided.eth.coinbase});
      contracts[contract_name] = meta;
    });
    return contracts;
  }

Answer 2

This worked for me. Hope my answer helps future readers.

You have to the set the defaultAccount to be used:

web3.eth.defaultAccount = web3.eth.accounts[0];

before using web3 instance.

Also, In my case where I'm using react-truffle box, the invalid address can be solved by adding.

this.state.web3.eth.defaultAccount = this.state.web3.eth.accounts[0];

before doing anything related to web3.

NOTE : Changing states in react like this is highly not recommended. Try using this.setState() to manipulate the web3 object's child. I haven't thought much about the app that I'm developing so for me if this works, I'M GOLDEN :D

Answer 3

I had an owner withdrawal function in my smart contract that would throw the following error:

Uncaught (in promise) Error: invalid address

I eventually realized that either Truffle or MetaMask expects an explicit from address.

This was my original function definition:

ownerWithdrawal() {
    return this.contractInstance.ownerWithdrawal(); // calls ownerWithdrawal() from Solidity contract
  }

Here is my new function definition with from address specified.

ownerWithdrawal() {
    return this.contractInstance.ownerWithdrawal({from: this.web3accounts[0]});
  }

Answer 4

using an old version of web3 for an outdated tutorial [email protected] and Firefox 100.0.1

this was what I added to react to get around the problem

web3.eth.defaultAccount = web3.eth.accounts[0]

Answer 5

Setting the default account for web3 or adding a from property will fix the error. You can consult the web3.eth documentation here (web3.eth documentation)