I can help you with this article. However, keep in mind that I will provide a general solution and that I will not cover all the on -board or specific use cases of the Metamask library.
** Error: “unlikely ammisse” when it is firmly firmly
The “non -valid” error generally occurs when the “Signtransaction” method is called with an unlikely sender. In the context of the Binance intelligent chain testnet (BSC), this error can be caused by certain reasons:
- The incorrect sender : The
SigntransAction method" awaits an Ethereum valid address such as its "sender". However, if you try to send funds from your private key to an external portfolio in BSC Testnet, you cannot work.
- Unlikely ABI contract: if the ABI of the contract (binary application interface) is incorrect or incomplete, the 'signtransaction method can launch an error.
- Make the web3
supplier: Metamsk requires that a web 3 supplier is working properly. Make sure you have installed and configured the right web 3 supplier for your environment.
Sugged solution
Here is a step by step solution:
- Check the ABI contract:
Make sure that the ABI of the contract is properly exported to the “contract” object in Metamask.
`Javascript
Const C = contract;
Const rewardScalcilatedtx = C.Methods.rewardScalculted (). Call ();
''
- Check the management of the entity : review the Ethereum address which tries to send funds to:
Javascript
Const PrivateKey = "0xeeeeeeeeeeeeeexample";
// replaced with your real private key
Const Sandeddress = PrivateKey.tohex (); // Convert hexadecimal
If (Senceaddress! == RewardScalcilatedtx.sender) {
Console.error (Server Invalid: $ {Sendraddress}! = $ {RewardScalcultedtx.sender});
back;
}
''
- Make sure the web3
:
Make sure Metamask connected to the right web supplier for your environment. You can check it by looking at the "connection" section in the Metamask configuration.
- Try a valid sender :
Try to sign the transaction using an Ethereum valid address, such as0xyourvalitydress ‘O’0xyourinvalidaddress’.
Here is an example of how you can change your code to manage these problems:
`Javascript
Const C = contract;
Const rewardScalcilatedtx = C.Methods.rewardScalculted (). Call ();
If (rewardscalcilatedtx.sender! == Privatekey.tohex ()) {
Console.error (Server Invalid: $ {rewardScalculcutedtx.sender}! = $ {Privatekey.tohex ()});
back;
}
// Check the ABI contract and the sender
Const AB = C.Abi;
Console.log (AB: $ {json.stringify (abi)});
// Obtain the address of the ABI contract
Constractaddress = abi [0]. Constant;
attempt {
// sign the transaction using the contract address and the private key
Const sigmedtx = rewardscalcilatedtx.sign (PrivateKey);
Console.log (Signed transaction: $ {sigmedtx});
} Capt (error) {
Console.error (error signature transaction: $ {error.message});
}
` ”
J’espère que cela aide à résoudre l’erreur “Sender non valide” lorsque MetAmsK est utilisé pour signer des transactions dans BSC TestNet. Si vous avez plus de questions ou de problèmes, n’hésitez pas à demander!
