当我试图解锁在MetaMask上创建的帐户时,我得到了"405方法不允许“错误。以下是代码:
string privateKey = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
string senderAddress = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
var account = new Account(privateKey);
var web3 = new Web3(accoun
当Metamask活动时,示例Truffle不工作。我正在运行testrpc,我将tesrpc帐户的私钥导入到Metamask,Metamask正在根据chrome控制台日志连接到本地testrpc:
Using web3 detected from external source. If you find that your accounts don't appear or you have 0 MetaCoin, ensure you've configured that source properly. If using MetaMask, see the followi
我对此有问题,我正在做一个关于如何通过web3与区块链交互的教程,我从区块链中得到了一些响应,但问题是当我试图发送事务或尝试与智能契约交互时。当我单击“发送”按钮时,我有一个错误:未定义的ReferenceError: myContract,无论如何,在此之前,代码运行良好,数据显示良好,一切看起来都很好,但当我单击该错误时,该函数无法工作。
我正在做本地主机,混合和元询问。没有部署ganache/rpc/geth。只想从HTML文件连接到块链。
这是我的完整代码:
Testing web3 connection
Web 3 test
Welcome t
当我运行geth命令列出所有帐户时,它工作正常: geth account list
INFO [04-09|15:47:35.967] Maximum peer count ETH=50 LES=0 total=50
INFO [04-09|15:47:35.967] Smartcard socket not found, disabling err="stat /run/pcscd/pcscd.comm: no such file or directory"
INFO [04-09|15:47:35.968] Set gl
我在IBFT上安装了带有4个法定节点和4个goQuorum节点的quorum-wizard。当我用"./start.sh“启动网络时,我得到
Starting Quorum network...
Waiting until all Tessera nodes are running...
Waiting until all Tessera nodes are running...
All Tessera nodes started
Starting Quorum nodes
Successfully started Quorum network.
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我一直在学习如何使用和python。我正在尝试编写一个非常简单的契约,它将使用ChainLink VRF v2生成一个随机数。
下面是他们的示例订阅管理器合同:的链接
我在我的VRFv2SubscriptionManager.sol文件中复制了完全相同的代码:
// SPDX-License-Identifier: MIT
// An example of a consumer contract that also owns and manages the subscription
pragma solidity ^0.8.7;
import "@chainlink/contract