Truffle, Error: Invalid number of arguments to Solidity function

Question

I have a smart contract that is exposing a list of addresses:

contract AddressBook {

    uint public val = 1000;
    address[] public addresses;

}

Then I do truffle compile && truffle migrate --reset After that, I run truffle console.

In the console, I bind the contract to a variable:

AddressBook.deployed().then(function(i){ab=i})

Now when I run:

ab.val.call()

It gives me back the proper result.

But when I run:

ab.addresses.call()

It responds with:

Error: Invalid number of arguments to Solidity function

I don't know why. Please help.

Answer 1

Actually the addresses variable is an array, so when you make a call use an element index number to access it.

AddressBook.deployed().then(function(i){i.addresses(indexNumer)})

or

ab.addresses(indexNumber)

Answer 2

Try deleting the build folder and run

truffle migrate --reset --compile-all

I had the same issue, the compiled code is corrupted. It works for the first time only and the subsequent compile corrupts the build. Hope it helps.