Web3.js: Invalid address thrown

[maran]

I'm having some issues with the following ABI.

var abi = [
  {
    "constant": true,
    "inputs": [
      {
        "name": "",
        "type": "bytes32"
      }
    ],
    "name": "documentHashMap",
    "outputs": [
      {
        "name": "",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "hash",
        "type": "bytes32"
      }
    ],
    "name": "newDocument",
    "outputs": [
      {
        "name": "success",
        "type": "bool"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "docId",
        "type": "uint256"
      }
    ],
    "name": "getDocument",
    "outputs": [
      {
        "name": "blockNumber",
        "type": "uint256"
      },
      {
        "name": "hash",
        "type": "bytes32"
      },
      {
        "name": "from",
        "type": "address"
      },
      {
        "name": "to",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "",
        "type": "uint256"
      }
    ],
    "name": "history",
    "outputs": [
      {
        "name": "blockNumber",
        "type": "uint256"
      },
      {
        "name": "hash",
        "type": "bytes32"
      },
      {
        "name": "from",
        "type": "address"
      },
      {
        "name": "to",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "",
        "type": "bytes32"
      }
    ],
    "name": "usedHashes",
    "outputs": [
      {
        "name": "",
        "type": "bool"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [],
    "name": "getLatest",
    "outputs": [
      {
        "name": "latest",
        "type": "uint256"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "hash",
        "type": "bytes32"
      }
    ],
    "name": "documentExists",
    "outputs": [
      {
        "name": "exists",
        "type": "bool"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "hash",
        "type": "bytes32"
      },
      {
        "name": "recipient",
        "type": "address"
      }
    ],
    "name": "transferDocument",
    "outputs": [
      {
        "name": "success",
        "type": "bool"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [],
    "name": "empty",
    "outputs": [],
    "type": "function"
  },
  {
    "inputs": [],
    "type": "constructor"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "name": "blockNumber",
        "type": "uint256"
      },
      {
        "indexed": true,
        "name": "hash",
        "type": "bytes32"
      },
      {
        "indexed": true,
        "name": "from",
        "type": "address"
      },
      {
        "indexed": true,
        "name": "to",
        "type": "address"
      }
    ],
    "name": "DocumentEvent",
    "type": "event"
  }
]

notaryContract = web3.eth.contract(abi).at("0x11f4d0a3c12e86b4b5f39b213f7e19d048276dae");
notaryContract.getLatest()

It throws the following error:

var inputAddressFormatter = function (address) {
    var iban = new Iban(address);
    if (iban.isValid() && iban.isDirect()) {
        return '0x' + iban.address();
    } else if (utils.isStrictAddress(address)) {
        return address;
    } else if (utils.isAddress(address)) {
        return '0x' + address;
    }
    throw 'invalid address'; <---- HERE
};

What am I doing wrong?

[maran]

It was a mistake on my part.

I didn't declare getLatest() as constant so it tired to transact. Transact requires a default to argument. By making it constant it solved my issue.