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I am a newbie and have just started building contracts. I am getting this error for this contract. Kindly help in solving thisenter image description here

Code-

For compile.js

const path = require('path');
const fs = require('fs');
const solc = require('solc');



const lotteryPath = path.resolve(__dirname, 'contracts', 'Lottery.sol');
const source = fs.readFileSync(lotteryPath, 'utf-8');

module.exports = solc.compile(source,1).contracts[':Lottery'];

For Lottery.sol

pragma solidity ^0.4.25; 


contract Lottery{
    address public manager;
    address[] public players;
    
    function lottery() public{
        manager = msg.sender;
    }
    
    function enter() public payable{
        require(msg.value > 0.01 ether);
        
        players.push(msg.sender);
    }
    
    function random() private view returns (uint){
        return uint(keccak256(block.difficulty, now, players));
    }
    
    function pickWinner() public restricted{
        
        uint index = random() % players.length;
        players[index].transfer(this.balance);
        players = new address[](0);
    }
    
    modifier restricted(){
        require(msg.sender == manager);
        _;
    }
    
    function getPlayers() public view returns (address[] memory){
        return players;
    }
}
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  • Are we supposed to guess what your code looks like????? Sep 21 '20 at 20:35
  • BTW, your question says "during deployment", but the screenshot shows "npm run test", which is a different thing, so please get your stuff straight together! Sep 21 '20 at 20:37
  • Do migrations run?
    – Ismael
    Sep 22 '20 at 2:14
  • I am sorry... I am a newbie, And I have just added my code. Thanks for pointing out the mistake Sep 22 '20 at 4:40
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Had the same issue, try this:

Instead of:

module.exports = solc.compile(source, 1).contracts[‘:Lottery’];

Do this:

compiledContracts = solc.compile(source, 1).contracts;
extractedLottery = compiledCon[:Lottery];
module.exports = extractedLottery;
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