Ethereum web3错误：执行eth_estimateGas时发生VM异常：操作码无效

我试图测试简单的传输方法（将某人的以太移动到另一个以太），但remix（solidity web编译器）说

我的文件结构是

pragma solidity ^0.4.18;

contract Exchange {
  mapping (address => uint256) public balances;
  string public helloworld;

  event LogDeposit(address sender, uint amount);
  event LogWithdraw(address receiver, uint amount);
  event LogTransfer(address sender, address receiver, uint amount);
  event HelloworldEvent(string helloworld);


  function Exchange() {
    helloworld = "helloworld!";
  }

  function helloWorld() returns (string) {
    return helloworld;
  }

  function deposit() payable returns(bool success) {
    balances[msg.sender] += msg.value;
    LogDeposit(msg.sender, msg.value);
    return true;
  }

  function withdraw(uint value) returns (bool success) {
    if (balances[msg.sender] < value) throw;
    balances[msg.sender] -= value;
    msg.sender.transfer(value);
    LogWithdraw(msg.sender, value);
    return true;
  }

  function transfer(address to, uint value) payable returns (bool success) {
    if (balances[msg.sender] < value) throw;
    balances[msg.sender] -= value;
    to.transfer(value);
    LogTransfer(msg.sender, to, value);
    return true;
  }

}

---

当我向这个Exchange.transfer（）方法添加一些gas，value参数时，VM返回“基本费用超过gas limit”

每个链都有一个gas limit，即矿工完成作业所能提供的最大gas量。因此，当你得到一个错误“基本费用超过天然气限制”时，它表示为执行你的操作而供应的天然气量超过了我解释的限制。您可以手动更改此限制，如下所示：

transfer（receiver.toString（），2，{gas:'amount here'}）

你可能已经知道了，但我猜你提供的太多了

---

至于你在混音中的错误，很难说清楚到底发生了什么，但毫无疑问，利用你提供的气体和类似的参数可能会奏效。

看起来你没有在你的客户中发送任何气体/加斯普里斯的交易选项。你能提供吗？看起来合同在混音中运行得很好（我使用了默认的3000000气体限制）

pragma solidity ^0.4.18;

contract Exchange {
  mapping (address => uint256) public balances;
  string public helloworld;

  event LogDeposit(address sender, uint amount);
  event LogWithdraw(address receiver, uint amount);
  event LogTransfer(address sender, address receiver, uint amount);
  event HelloworldEvent(string helloworld);


  function Exchange() {
    helloworld = "helloworld!";
  }

  function helloWorld() returns (string) {
    return helloworld;
  }

  function deposit() payable returns(bool success) {
    balances[msg.sender] += msg.value;
    LogDeposit(msg.sender, msg.value);
    return true;
  }

  function withdraw(uint value) returns (bool success) {
    if (balances[msg.sender] < value) throw;
    balances[msg.sender] -= value;
    msg.sender.transfer(value);
    LogWithdraw(msg.sender, value);
    return true;
  }

  function transfer(address to, uint value) payable returns (bool success) {
    if (balances[msg.sender] < value) throw;
    balances[msg.sender] -= value;
    to.transfer(value);
    LogTransfer(msg.sender, to, value);
    return true;
  }

}

  $("#button").click(function() {
      Exchange.transfer(receiver.toString(), 2);
      // $("#loader").show();
    });