錯誤：在依賴於參數的查找後未找到成員“發送”或不可見

我正在嘗試編譯以下智能合約：

pragma solidity ^0.5.1; 
contract Governmental{
  uint constant TWELVE_HOURS = 12;
  
  function lendGovernmentMoney ( address buddy ) public  returns ( bool ) {
     address owner;
     uint[] memory creditorAddresses;
     uint lastTimeOfNewCredit =0;
     uint amount = msg. value ;
     uint creditorAmounts = 0;
     uint profitFromCrash = 0;
     uint round = 0;
     uint lastCreditorPayedOut = 0;
      
     // check the condition to end the game
     if ( lastTimeOfNewCredit + TWELVE_HOURS > block . timestamp ) {
        msg.sender.send ( amount );
        // Sends jacpot to the last creditor
        creditorAddresses[creditorAddresses.length - 1].send ( profitFromCrash );
        owner.send (this.balance);
        // Reset contract state
        lastCreditorPayedOut = 0;
        lastTimeOfNewCredit = block . timestamp ;
        profitFromCrash = 0;
        creditorAddresses = new address [](0);
        creditorAmounts = new uint [](0);
        round += 1;
        return false ;
     }
  }
}

我收到錯誤消息：

prg17.sol:20:10：錯誤：在 uint256 中進行與參數相關的查找後，未找到成員“發送”或不可見。債權人地址

$$ creditorAddresses.length - 1 $$.send ( ProfitFromCrash ); ^————————————————- -^

有人請指導我。

祖爾菲。

creditorAddresses被聲明為一個 uint 數組。

uint[] memory creditorAddresses;

可能您打算將其聲明為地址數組

address payable[] memory creditorAddresses;

當數組為空時，此程式碼creditorAddresses[creditorAddresses.length - 1]也不起作用。如果記憶體數組沒有像程式碼片段那樣初始化，就是這種情況。

引用自：https://ethereum.stackexchange.com/questions/93671