Lesson 2: problem while executing function sFStore

[praxis-dev]

Hi!

This is the problem as stated in the transactions wimdow:

transact to StorageFactory.sfStore errored: Error encoding arguments: Error: invalid BigNumber string (argument="value", value="", code=INVALID_ARGUMENT, version=bignumber/5.5.0)

And here is my code:

// SPDX-License_Identifier: MIT

pragma solidity ^0.8.0; 

import "./SimpleStorage.sol";

contract StorageFactory {
    SimpleStorage[] public simpleStorageArray;

    function createSimpleStorageContract() public {
        SimpleStorage simpleStorage = new SimpleStorage();
        simpleStorageArray.push(simpleStorage);
    }

    function sfStore(uint256 _simpleStorageIndex, uint256 _simpleStorageNumber) public {
        // Address
        // ABI
        SimpleStorage simpleStorage = SimpleStorage(address(simpleStorageArray[_simpleStorageIndex]));
        simpleStorage.store(_simpleStorageNumber);
    }
    function sFGet(uint256 _simpleStorageIndex) public view returns (uint256) {
        SimpleStorage simpleStorage = SimpleStorage(address(simpleStorageArray[_simpleStorageIndex]));
        return simpleStorage.retrieve();
    }

}

[LesBLUUs]

contract StorageFactory is SimpleStorage

try adding the 'is SimpleStorage' after StorageFactory and see if that helps!!

[praxis-dev]

So now the code looks like this:

// SPDX-License_Identifier: MIT

pragma solidity ^0.8.0; 

import "./SimpleStorage.sol";

contract StorageFactory is SimpleStorage {
    SimpleStorage[] public simpleStorageArray;

    function createSimpleStorageContract() public {
        SimpleStorage simpleStorage = new SimpleStorage();
        simpleStorageArray.push(simpleStorage);
    }

    function sfStore(uint256 _simpleStorageIndex, uint256 _simpleStorageNumber) public {
        // Address
        // ABI
        SimpleStorage simpleStorage = SimpleStorage(address(simpleStorageArray[_simpleStorageIndex]));
        simpleStorage.store(_simpleStorageNumber);
    }
    function sFGet(uint256 _simpleStorageIndex) public view returns (uint256) {
        SimpleStorage simpleStorage = SimpleStorage(address(simpleStorageArray[_simpleStorageIndex]));
        return simpleStorage.retrieve();
    }

}

And the error persists:

transact to StorageFactory.sfStore errored: Error encoding arguments: Error: invalid BigNumber string (argument="value", value="0.55", code=INVALID_ARGUMENT, version=bignumber/5.5.0)

Which is exactly the same. Any suggestions?

[LesBLUUs]

Hello, and yes I have a suggestion!
try changing this line in your code

SimpleStorage simpleStorage = SimpleStorage(address(simpleStorageArray[_simpleStorageIndex]));
simpleStorage.store(_simpleStorageNumber);

to this

SimpleStorage(address(simpleStorageArray[_simpleStorageIndex])).store(_simpleStorageNumber);

[LesBLUUs]

also the f should be lowercase in your last function perhaps the last function should be adjusted to this as well

 function sfGet(uint256 _simpleStorageIndex) public view returns (uint256) {
        return SimpleStorage(address(simpleStorageArray[_simpleStorageIndex])).retrieve();
        
    }

[cromewar]

Thanks for the help here @LesBLUUs, remember always reference the github repo with the code @vaporm ;)

[LesBLUUs]

Anytime!!

[coodered]

So have you direct chat to WhatsApp? If is ok I need your WhatsApp number please

…

On Tue, Apr 26, 2022, 19:17 LesBLUUs ***@***.***> wrote: Anytime!! — Reply to this email directly, view it on GitHub <#1439 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AUCOXUUMNFGY5QZNADNRF23VHAXKRANCNFSM5UE43OPQ> . You are receiving this because you are subscribed to this thread.Message ID: <smartcontractkit/full-blockchain-solidity-course-py/repo-discussions/1439/comments/2641220 @github.com>

[mbuv1]

did this problem get resolved, just started and am stuck at this point:
from solidity:
TypeError: Wrong argument count for function call: 0 arguments given but expected 1.
--> contracts/StorageFactory.sol:24:16:
|
24 | return simpleStorage.retrieve();
| ^^^^^^^^^^^^^^^^^^^^^^^^