Metamask: Error: ‘Invalid Sender’ when I signTransaction in bscTestnet – Web3

I can help you with this article. However, please note that I will provide a general solution and I will not have to cover all marginal cases or specific cases of use of the Metamask library.

Error: “Non valid sender” when you record in Bsctestnet – Web3

The “non -valid sender” error usually occurs when the “SignraNsation” method is called a valid sender. In the context of Binance Smart Chain (BSC) Testnet could be this error caused by various reasons:

Wrong sender : Method Signranstion An Ethereum address valid as his sender is expected. However, if you are trying to send funds from the private key to a portfolio outside the BSC Testnet, it may not work.

Missing Web3 provider: Metamask requires that the web3 provider works correctly. Make sure you have installed and configured the correct web3 provider for your environment.

proposed solution

Here is a gradual solution:

Check the ABI

contract:

Make sure the ABI contract is adequately balanced by the “contract” building in Metamask.

`Javascript

Const C = contract;

Cont RewardscalculatelTx = C.Methods.rewardscalculatel (). call ();




 Check the sender address 

: double control of the Ethereum address that you are trying to send funds to:

Javascript

Const Privatekey = “0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee”;

// Replace with your real private key

Const Sendradrress = Privateky.tohex (); // convert into hexadecimal

If (Sendradddress! == rewardscalculaculatoTx.sender) {

Console.error (`non -valid sender: $ {Senddress}! = $ {Rewardscalculattx.sender});

return;

}




** Make sure the web3 provider is installed:


Make sure that Metamask has joined the correct web3 provider for your environment. You can check it when watching the "Connect" section in the Metamask settings.


 Test with a valid sender :

Try to sign a transaction using a valid Ethereum address, such as0xyurvalidaDDress0xyurinvaldress’.

Here is an example of how you can change your code to solve the following problems:

`Javascript

Const C = contract;

Cont RewardscalculatelTx = C.Methods.rewardscalculatel (). call ();

IF (rewardscalculaculatx.sender! == Privatekey.tohex ()) {

Console.error (`non -valid sender: $ {rewardscalculaculatoTx.sender}! = $ {Privatekey.thex ()});

return;

}

// Check the ABI contract and the sender

Const Abi = C.Abi;

Console.log (ABI: $ {Json.strincify (ABI) );



// Get the address of the contract from ABI

Const ContrattattAddress = ABI [0]. Constant;

Attempt {

  // signature transaction using the contract address and the private key

  Cont signadtx = rewardscalculatttx.sign (PrivateKey);

Console.log (signed transaction: $ {signadtx);

} Catch (error) {

Console.error (`erroring firming transaction: $ {error.message);

}

I hope this helps you to solve the “non -valid sender” error using Metamask to sign a BSC Testnet transaction. If you have further questions or problems, don’t hesitate to ask!

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