Practicising question formatting

[bustop69]

    function store (uint256 changeFavouriteNumber) public override  {
        favouriteumber = changeFavouriteNumber + 5;
    }

On this functions, I am running into an error:

DeclarationError: Undeclared identifier. Did you mean "favouriteNumber"?

Can someone tell me what's going on

[alfaqi]

There’s typo, change favouriteumber to favouriteNumber

favouriteNumber = changeFavouriteNumber + 5;