为什么我不能用这个简单的代码发送 ftm

Private Async Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim privatekey = System.IO.File.ReadAllText("privatekey.txt")
    'Dim publickey = "0x898568c58466957bedaE0e2A2457beb158a150de" ''
    Dim destination = "0x7fD0Ec4d9908A712852d32d110839Fc1A9Ce55d5"
    Dim rpcURL = "https://rpc.ftm.tools" ' where should I put this
    Dim chainID = 250 'Where should I put this?

    Dim account = New Nethereum.Web3.Accounts.Account(privatekey, chainID)
    Dim web3 = New Nethereum.Web3.Web3(account, rpcURL)
    Dim amount = New Nethereum.Hex.HexTypes.HexBigInteger(10)
    Await web3.TransactionManager.SendTransactionAsync(account.Address, destination, amount)
End Sub

我正在学习使用以太坊。

我做了这个简单的代码。简单的。我想将 10 wei 的 fantom 发送到另一个地址。简单对。

我收到了这个错误

这很奇怪。

索引超出了数组的范围？什么束缚？

无论如何，这是一个非常简单的程序。我想知道我哪里错了？

这是正确的方法吗？

其他与我们相关的小问题（我应该单独问这个）。为什么chainID是account的属性而rpcURL是web3的属性。我认为使用https://rpc.ftm.tools的 fantom 链使用 chainID 250。所以如果我们知道链 id，我们就知道 rpc url，如果我们知道 rpc url，我们就知道它会无论如何，只适用于一个链 ID。

如何修复我的代码？怎么了？如果有人能解释chainID rpcURL 的困境，那就太好了。

我进一步查看错误发生的位置。当 netthereum 尝试计算 gas 费用时，似乎会发生错误。

在

Nethereum.RPC.Fee1559Suggestions.TimePreferenceFeeSuggestionStrategy.SuggestFees(FeeHistoryResult feeHistory, BigInteger tip)
   at Nethereum.RPC.Fee1559Suggestions.TimePreferenceFeeSuggestionStrategy.<SuggestFeesAsync>d__29.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Nethereum.RPC.Fee1559Suggestions.TimePreferenceFeeSuggestionStrategy.<SuggestFeeAsync>d__27.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Nethereum.RPC.TransactionManagers.TransactionManagerBase.<SetTransactionFeesOrPricingAsync>d__37.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Nethereum.Web3.Accounts.AccountSignerTransactionManager.<SignTransactionRetrievingNextNonceAsync>d__14.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Nethereum.Web3.Accounts.AccountSignerTransactionManager.<SignAndSendTransactionAsync>d__16.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Nethereum.RPC.TransactionReceipts.TransactionReceiptPollingService.<SendRequestAndWaitForReceiptAsync>d__5.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at testapp.Form1.VB$StateMachine_9_doSomething.MoveNext() in C:\Users\teguh\Dropbox\vb.net\testapp\testapp\Form1.vb:line 21
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at testapp.Form1.VB$StateMachine_8_Button1_Click.MoveNext() in C:\Users\teguh\Dropbox\vb.net\testapp\testapp\Form1.vb:line 3

无论如何，我打算手动执行此操作。但是我应该怎么做呢？

我将代码更改为

  Dim privatekey = System.IO.File.ReadAllText("privatekey.txt")
    'Dim publickey = "0x898568c58466957bedaE0e2A2457beb158a150de" ''
    Dim destination = "0x7fD0Ec4d9908A712852d32d110839Fc1A9Ce55d5"
    Dim rpcURL = "https://rpc.ftm.tools" ' where should I put this
    Dim chainID = 250 'Where should I put this?

    Dim account = New Nethereum.Web3.Accounts.Account(privatekey, chainID)

    Dim web3Obj = New Nethereum.Web3.Web3(account, rpcURL)
    'Dim amount = Nethereum.Web3.Web3.Convert.ToWei(0.1)
    Dim balance = Await web3Obj.Eth.GetBalance.SendRequestAsync(account.Address)
    Dim EtherBalance = Nethereum.Web3.Web3.Convert.FromWei(balance.Value) 'I got the correct value here


    Dim result = Await web3Obj.Eth.GetEtherTransferService.TransferEtherAndWaitForReceiptAsync(destination, 1D, 1)

基本上，我是小气，说gas price应该是1wei。我“当之无愧地”收到了这条消息

交易被低估

我想我应该自己编码汽油价格。我该怎么做？fantom的最低gas价格是多少？