我在IBM Blockchain Platform云中部署了一个非常基本的IBM Blockchain网络：只有一个对等组织和一个订购组织。我已经安装并实例化了一个非常基本的合同（只是CRUD操作），现在我正在尝试使用模板Nodejs客户端应用程序为我的资产提交创建交易；这是我的代码：

'use strict';

const { FileSystemWallet,Gateway } = require('fabric-network');
const fs = require('fs');
const path = require('path');

async function main() {
  try {

    // Parse the connection profile. This would be the path to the file downloaded
    // from the IBM Blockchain Platform operational console.
    const ccpPath = path.resolve(__dirname,'connection.json');
    const ccp = JSON.parse(fs.readFileSync(ccpPath,'utf8'));

    // Configure a wallet. This wallet must already be primed with an identity that
    // the application can use to interact with the peer node.
    const walletPath = path.resolve(__dirname,'wallet');
    const wallet = new FileSystemWallet(walletPath);

    // Create a new gateway,and connect to the gateway peer node(s). The identity
    // specified must already exist in the specified wallet.
    const gateway = new Gateway();

    await gateway.connect(ccp,{ wallet: wallet,identity: 'orgAdmin',discovery: {"enabled": true,"asLocalhost":false }});

    // Get the network channel that the smart contract is deployed to.
    const network = await gateway.getNetwork('erschannel');

    // Get the smart contract from the network channel.
    const contract = network.getcontract('ers_contract');

    // Submit the 'createCar' transaction to the smart contract,and wait for it
    // to be committed to the ledger.
    await contract.submitTransaction('createErsGenHash','ersGenHashId_1','ersGenHashId_1_value');
    console.log('Transaction has been submitted');

    await gateway.disconnect();

    } catch (error) {
      console.error(`Failed to submit transaction: ${error}`);
      process.exit(1);
    }
  }
main();

我已经成功注册了身份 orgAdmin ，并将其下载到我的本地钱包中（至少我没事！！）。执行以上操作时，出现以下错误：

C:\work\hlf>node invoke.js
2020-06-04T18:34:28.213Z - error: [Network]: _initializeInternalChannel: No peers defined for MSP 'orgAdmin' to discover from
Failed to submit transaction: Error: No peers defined for MSP 'orgAdmin' to discover from

这是我的 connection.json 概要文件（我从IBM Blockchain Platform控制台下载了）；奇怪的是没有订购信息：

{
    "name": "ORG1MSPprofile","description": "Network on IBP v2","version": "1.0.0","client": {
        "organization": "ORG1MSP"
    },"organizations": {
        "ORG1MSP": {
            "mspid": "ORG1MSP","certificateAuthorities": [
                "184.172.233.238:31951"
            ],"peers": [
                "184.172.233.238:30604"
            ]
        }
    },"peers": {
        "184.172.233.238:30604": {
            "url": "grpcs://184.172.233.238:30604","tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE-----\nxxxxxxxxxxx\n-----END CERTIFICATE-----\n"
            },"grpcOptions": {
                "ssl-target-name-override": "184.172.233.238"
            }
        }
    },"certificateAuthorities": {
        "184.172.233.238:31951": {
            "url": "https://184.172.233.238:31951","caName": "ca","tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE-----\nxxxxxxxxxxx\n-----END CERTIFICATE-----\n"
            }
        }
    }
}

我怀疑问题出在我如何配置IBM云区块链网络。我遵循了有关从here构建网络的官方教程。