Ich versuche, einen Crowdsale-Vertrag bereitzustellen, aber wenn ich "trufflemigrate --network ropsten" mache, erhalte ich diese Fehler:
Running migration: 1_initial_migration.js Deploying Migrations... ... 0xf8166f59ad6440ba56504956e5c54f7af17a30d6a6c64af6dd142808084e674d Migrations: 0x2be64f6a5ccb337d6106b343574eaa6a60b3f75d Saving successful migration to network... ... 0x6626bb628643554f06569c1a7b970b6d096242104b3ce711b69aff411530ab07 Saving artifacts... Running migration: 2_deploy_contracts.js Deploying zeppelinSales... Error encountered, bailing . Netzwerkstatus unbekannt. Überprüfen Sie erfolgreiche Transaktionen manuell. Fehler: zeppelinSales-Vertragskonstruktor erwartete 3 Argumente, erhielt 0 bei /usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-contract/contract.js:390:1 bei new Promise () bei /usr/ local/lib/node_modules/truffle/build/webpack:/packages/truffle-contract/contract.js:374:1 bei process._tickCallback (internal/process/next_tick.js:188:7)
Hier ist meine zeppelinSales.sol:
pragma solidity ^0.4.24;
import "zeppelin-solidity/contracts/token/ERC20/ERC20.sol";
import "zeppelin-solidity/contracts/math/SafeMath.sol";
import "zeppelin-solidity/contracts/token/ERC20/SafeERC20.sol";
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conform
* the base architecture for crowdsales. They are *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
contract zeppelinSales {
using SafeMath for uint256;
using SafeERC20 for ERC20;
// The token being sold
ERC20 public token;
// Address where funds are collected
address public wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a DetailedERC20 token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 public rate;
// Amount of wei raised
uint256 public weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokenPurchase(
address indexed purchaser,
address indexed beneficiary,
uint256 value,
uint256 amount
);
/**
* @param _rate Number of token units a buyer gets per wei
* @param _wallet Address where collected funds will be forwarded to
* @param _token Address of the token being sold
*/
constructor(uint256 _rate, address _wallet, ERC20 _token) public {
require(_rate > 0);
require(_wallet != address(0));
require(_token != address(0));
rate = 8 * (10**8);
wallet = 0xF76075Cf3B674fB9656E393e9e17091B01243666;
token = token = ERC20(0x0f26c1c05f1bbBC7Eff0488F1a98619e8a9758cf);
}
// -----------------------------------------
// Crowdsale external interface
// -----------------------------------------
/**
* @dev fallback function ***DO NOT OVERRIDE***
*/
function () external payable {
buyTokens(msg.sender);
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* @param _beneficiary Address performing the token purchase
*/
function buyTokens(address _beneficiary) public payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(_beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
weiRaised = weiRaised.add(weiAmount);
_processPurchase(_beneficiary, tokens);
emit TokenPurchase(
msg.sender,
_beneficiary,
weiAmount,
tokens
);
_updatePurchasingState(_beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(_beneficiary, weiAmount);
}
// -----------------------------------------
// Internal interface (extensible)
// -----------------------------------------
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met. Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(_beneficiary, _weiAmount);
* require(weiRaised.add(_weiAmount) <= cap);
* @param _beneficiary Address performing the token purchase
* @param _weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(
address _beneficiary,
uint256 _weiAmount
)
internal
{
require(_beneficiary != address(0));
require(_weiAmount != 0);
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid conditions are not met.
* @param _beneficiary Address performing the token purchase
* @param _weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(
address _beneficiary,
uint256 _weiAmount
)
internal
{
// optional override
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends its tokens.
* @param _beneficiary Address performing the token purchase
* @param _tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(
address _beneficiary,
uint256 _tokenAmount
)
internal
{
token.safeTransfer(_beneficiary, _tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Not necessarily emits/sends tokens.
* @param _beneficiary Address receiving the tokens
* @param _tokenAmount Number of tokens to be purchased
*/
function _processPurchase(
address _beneficiary,
uint256 _tokenAmount
)
internal
{
_deliverTokens(_beneficiary, _tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions, etc.)
* @param _beneficiary Address receiving the tokens
* @param _weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(
address _beneficiary,
uint256 _weiAmount
)
internal
{
// optional override
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param _weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 _weiAmount)
internal view returns (uint256)
{
return _weiAmount.mul(rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
wallet.transfer(msg.value);
}
}
Und hier ist meine 2_deploy_contracts.js
const zeppelinSales = artifacts.require("./zeppelinSales.sol");
module.exports = function(deployer) {
deployer.deploy(zeppelinSales);
};
Hier ist die 1_initial_migration.js
var Migrations = artifacts.require("./Migrations.sol");
module.exports = function(deployer) {
deployer.deploy(Migrations);
};
Hier ist migrations.sol Pragma solidity ^0.4.23;
contract Migrations {
address public owner;
uint public last_completed_migration;
constructor() public {
owner = msg.sender;
}
modifier restricted() {
if (msg.sender == owner) _;
}
function setCompleted(uint completed) public restricted {
last_completed_migration = completed;
}
function upgrade(address new_address) public restricted {
Migrations upgraded = Migrations(new_address);
upgraded.setCompleted(last_completed_migration);
}
}
Vielen Dank im Voraus!
Der Konstruktor von ZeppelinSales
benötigt drei Parameter:
constructor(uint256 _rate, address _wallet, ERC20 _token) public
Aber Ihr Migrationsskript stellt sie nicht bereit:
const zeppelinSales = artifacts.require("./zeppelinSales.sol");
module.exports = function(deployer) {
deployer.deploy(zeppelinSales);
};
Sie müssen die _rate
, die _wallet
Adresse und die _token
Adresse mit der deployer.deploy
Funktion angeben.
Ein Beispiel:
let rate = <INSERT THE RATE HERE>; // a number
let wallet = "<INSERT THE WALLET ADDRESS HERE>"; // an address string
let token = "<INSERT THE ERC20 TOKEN ADDRESS HERE>"; // an address string
const zeppelinSales = artifacts.require("./zeppelinSales.sol");
module.exports = function(deployer) {
deployer.deploy(zeppelinSales, rate, wallet, token);
};
Wenn dies der Fall ist, können Sie die 3 nicht verwendeten Eingabeparameter im Konstruktor des Smart Contracts entfernen
Ändern:
/**
* @param _rate Number of token units a buyer gets per wei
* @param _wallet Address where collected funds will be forwarded to
* @param _token Address of the token being sold
*/
constructor(uint256 _rate, address _wallet, ERC20 _token) public {
require(_rate > 0);
require(_wallet != address(0));
require(_token != address(0));
rate = 8 * (10**8);
wallet = 0xF76075Cf3B674fB9656E393e9e17091B01243666;
token = token = ERC20(0x0f26c1c05f1bbBC7Eff0488F1a98619e8a9758cf);
}
Zu:
constructor() public {
rate = 8 * (10**8);
wallet = 0xF76075Cf3B674fB9656E393e9e17091B01243666;
token = ERC20(0x0f26c1c05f1bbBC7Eff0488F1a98619e8a9758cf);
}
Josefhh
Josefhh
Henk
8 * (10**8)
, also ohne<
und>
. Adressen können als Zeichenfolgen bereitgestellt werden