hie, line six “mapping” gets an error that states identifier not found or not unique, tried to move code to another file, change pragma version. what can be the cause? best// J
pragma solidity 0.7.5;
contract mappingtest {
mapping (adress => uint) public saldo;
function addsaldo(uint _toAdd) public returns (uint){
saldo[msg.sender] += _toAdd;
return saldo[msg.sender];
}
function getsaldo() public view returns (uint){
return saldo[msg.sender];
}
function transfer(adress recipient, uint amount) public {
_transfer(msg.sender, recipient, amount);
}
function _transfer(adress from, adress to, uint amount) private {
balance[from] -= amount;
balance[to] += amount;
}
}
