Argent Account not working in js

[jrcarlos2000]

deploying an Argent account and invoking a function works well
but when reading an existing account and invoking a function in a contract there this issue :

var msgSignature = keyPair.sign(fixMessage(msgHash));
^
TypeError: Cannot read properties of null (reading 'sign')

using the private key exported from argent google extension

[badurinantun]

What is the format of the private key?

[jrcarlos2000]

What is the format of the private key?

Is a hex string , from argent google extension casted to hex

[badurinantun]

I'm not sure why it's null, are you sure process.env.PRIVATE_KEY is set?

[jrcarlos2000]

Private key is set

[badurinantun]

Was this Argent account deployed using the Hardhat plugin?

[jrcarlos2000]

No it wasn’t , it’s an existing argent account . Don’t know if there is an extra workaround to import such wallets . For a wallet deployed from the plug-in , it doesn’t face this problem.

[badurinantun]

Artifacts probably don't match, you would need to deploy the exact contract that was deployed previously

[rzmahmood]

Also having this exact same issue

[FabijanC]

When you deploy your Argent Account, also store its guardian key. Then next time when you are loading it with starknet.getAccountFromAddress, also set the guardian:

const deployedAccount = await starknet.deployAccount("Argent");
const address = deployedAccount.address;
const privateKey = deployedAccount.privatekey;
const guardianPrivatekey = deployedAccount.guardianPrivateKey;

... doStuffHere() ...

const loadedAccount = (await starknet.getAccountFromAddress(address, privateKey, "Argent")) as ArgentAccount;
await loadedAccount.setGuardian(guardianPrivateKey);

Note that deploying ArgentAccounts currently (with Plugin v0.5.5) only works on Devnet because internally this requires invoking the initialize method of the account contract, which incurs cost (and requires a fee). Future versions will probably separate the initialization from the deployment.

[rzmahmood]

What if my Argent Account uses the 0 address as the guardian key? This is the default used by ArgentX. I'm still having this issue

[FabijanC]

What if my Argent Account uses the 0 address as the guardian key? This is the default used by ArgentX. I'm still having this issue

This will be fixed in the next plugin version.