Member "push" not found or not visible after argument-dependent lookup

Question

// SPDX-License-Identifier: GPL-3.0
pragma solidity >0.6.0 < 0.9.0 ;
contract xyz {
    uint256 public abc ;
    struct lmnop {
        uint256  abc;
        string name;
    }
    lmnop [] public qwerty ;
    //lmnop public qwerty = lmnop ({abc:2,name : "Nilesh Jain"});

function store (uint256 _abc) public 
{
    abc =_abc ;
    
}
function retrieve () public view returns (uint256)
{
    return abc ;
}
function addqwerty (string memory _name, uint256 _abc) public {
 lmnop.push(lmnop({abc:_abc, name:_name})) ;
}
}

tried to changing as the code provided in exchange but it does not work.

Answer 1

The array you declare here :

 lmnop [] public qwerty ;

is of type lmnop[] and has a name / identifier of qwerty. Simply change your addqwerty function to use the actual name of the array instead of its type :

function addqwerty (string memory _name, uint256 _abc) public {
 qwerty.push(lmnop({abc:_abc, name:_name})) ;
}