pragma solidity ^0.5.0;

contract Lottery {
    address public manager;
    address[] public players;
    event Deposit(address _from, uint value);

    constructor() public {
        manager = msg.sender;
    }

    function enter() public payable {
        require(msg.value > .01 ether, 'Not enough ether');
        players.push(msg.sender);
    }

    function numberPlayers() public view returns(uint) {
        return players.length;
    }
}

pragma solidity ^0.5.0;

contract Lottery {
    address public manager;
    address[] public players;
    // event Deposit(address _from, uint value);

    constructor() public {
        manager = msg.sender;
    }

    function enter() public payable {
        require(msg.value > .01 ether, 'Not enough ether');
        players.push(msg.sender);
    }

    function numberPlayers() public view returns(uint) {
        return players.length;
    }
}

1) Contract: Lottery
       should create a player if the player send some ether:
     Error: Invalid number of parameters for "enter". Got 1 expected 2!
      at Object.InvalidNumberOfParams (/Users/adrian.ferrereses/.nvm/versions/node/v10.15.3/lib/node_modules/truffle/build/webpack:/~/web3-eth-contract/~/web3-core-helpers/src/errors.js:32:1)
      at Object._createTxObject (/Users/adrian.ferrereses/.nvm/versions/node/v10.15.3/lib/node_modules/truffle/build/webpack:/~/web3-eth-contract/src/index.js:699:1)
      at constructor.detectNetwork.then.network (/Users/adrian.ferrereses/.nvm/versions/node/v10.15.3/lib/node_modules/truffle/build/webpack:/packages/truffle-contract/lib/execute.js:170:1)
      at process._tickCallback (internal/process/next_tick.js:68:7)

Truffle v5.0.15 (core: 5.0.15)
Solidity v0.5.0 (solc-js)
Node v10.15.3
Web3.js v1.0.0-beta.37