what im i doing wrong here, this is smart contract based on e-commerce that allow users to create store list goods and sell. im getting the above error on line 61an e-commerce smart contract

// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.9;

//import "hardhat/console.sol";

contract MarketPride { address payable owner; uint256 productCounter;

struct Product { string title; string category; string description; address payable seller; uint256 price; uint256 rating; uint id; uint256 timestamp; } products[++productCounter] = newProduct //creating an object of all store struct storeStruct { string name; string description; uint256 id; address creator; } Product[] products;

mapping (uint256 => Product) public productById; mapping (uint256 => storeStruct) public stores;

constructor () {
  owner == msg.sender;

modifier onlyStoreOwner() { require(owner == msg.sender , 'only store owner can delete a store'); _; }

event payment( address indexed _from, address indexed _to, uint256 _price );

function checkUserExist(address pubkey) public view returns(bool){}

function createStore(string calldata _name, string calldata _desc) public view{ require(checkUserExist(msg.sender) == false, 'pls register an account first'); require(bytes(_name).length>0, "Store name needs to be included"); require(bytes(_desc).length>0, "description plays an important role"); }

function listProductToStore( string memory _name, string memory _category, string memory _description, address payable _price, uint256 _rating, uint256 _time) public { require(checkUserExist(msg.sender) == false, 'pls register an account first'); Product memory newProduct = Product({ buyer: address(0), seller: msg.sender, id: products, name: _name, category: _category, description: _description, price: _price, rating: _rating });


function payForProducts(address _from, address _to, uint256 price) public payable { }

function getAllStore() public view returns(storeStruct[] memory){}

function getAllProduct() public view returns(Product[] memory){}

function getStoreName(address pubkey) external view returns(string memory){} }

  • Please, include the code as text. It is much easier for testing than using an image.
    – Ismael
    Nov 22, 2022 at 7:02

1 Answer 1


I am not sure why you created your struct instance with the name Product when you have created the struct with the name productStruct. Replace your line 61 with:

productStruct memory newProduct = productStruct({ ...

Also, seems like you are not storing your struct instance anywhere. Make sure to update that too.

products[++productCounter] = newProduct

UPDATE: The final code:

productStuct memory newProduct = productStuct({
        buyer: address(0),
        seller: msg.sender,
        id: products,
        name: _name,
        category: _category,
        description: _description,
        price: _price,
        rating: _rating
    products[++productCounter] = newProduct
  • where should i add lhe 2nd code you wrote
    – Josephdev
    Nov 22, 2022 at 10:27
  • Just below the struct Nov 22, 2022 at 10:30
  • Linter: Parse error: extraneous input '=' expecting {'from', 'error', 'calldata', 'revert', 'callback', 'override', 'constant', 'immutable', 'leave', 'internal', 'payable', 'private', 'public', 'constructor', 'receive', Identifier} [undefined] Expected identifier but got '='
    – Josephdev
    Nov 22, 2022 at 10:44
  • i just updated the question with an original code as text can you pls check it out and hlp
    – Josephdev
    Nov 22, 2022 at 10:48
  • Updated my answer Nov 22, 2022 at 10:54

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