Lesson 3: Inheritance & Overrides | The favoriteNumber is not being inherited from the Simple Storage file.

[ShettyDhanushK]

In the video, Patrick explained to inherit from a contract by using the "imports" and "is" keyword. He tried to add 5 to the favoriteNumber using the store function and it worked, but when i tried to replicate the same it gives me an error saying "Undefined Identifier". Yes, the error is saying that the favoriteNumber has not been declared but it was declared in the inherited file. Patrick did the same but it worked. But for me it is throwing an error while compiling. The code of inherited file is:
`
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.8;

contract SimpleStorage {
uint256 private favoriteNumber;

function store(uint256 _favoriteNumber) public virtual {
    favoriteNumber = _favoriteNumber;
}

}
The code of the file where we are trying to override is : // SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./SimpleStorage.sol";

contract ExtraStorage is SimpleStorage {

function store(uint256 _favoriteNumber) public override {
    favoriteNumber = _favoriteNumber + 5;
}

}`
Can someone please explain what is going on?

[ShettyDhanushK]

I just used "private" to the favoriteNumber variable so I could not access it in the other contract.