如何在NodeSDK中从查询请求中获取来自shim.Error的“错误消息”( "Error Message")

const { Gateway, Wallets } = require('fabric-network');
const FabricCAServices = require('fabric-ca-client');
const fs = require('fs');
const path = require('path');

async function queryData() {
  try {
    // 创建Gateway对象并连接到Fabric网络
    const gateway = new Gateway();
    await gateway.connect(ccp, { wallet, identity: 'user1', discovery: { enabled: true, asLocalhost: true } });

    // 获取网络中的通道
    const network = await gateway.getNetwork('mychannel');

    // 获取合约对象
    const contract = network.getContract('mychaincode');

    // 发起查询请求
    const result = await contract.evaluateTransaction('query', 'key');

    // 处理查询结果
    console.log(result.toString());

    // 断开与Fabric网络的连接
    await gateway.disconnect();
  } catch (error) {
    // 获取错误消息
    const errorMessage = error.message;
    console.error(errorMessage);
  }
}

queryData();