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function withdraw() external isOwner() {
    address payable owner = address(uint160(getOwner()));//**this is the line I get err
    owner.transfer(address(this).balance);
}

owner contract:

function getOwner() external view returns (address) {
    return owner;
}

1 Answer 1

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Your function getOwner() is marked external, and you're calling it internally. If you instead mark getOwner() as public, it will both be callable from outside and inside your contract.

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