[SDK]Error: Failed to ChangePubKey authorized by ECDSA.: Account does not exist in the zkSync network

[herryho]

Environment

Mainnet

Acknowledgement

• I understand that issues are expected with the Python and Java SDK as they are being updated.

Issue Description

I have an account（0x26b99F99aEF1230f9F691a3677d711639e70443B） which has already conducted some transactions in zksync through metamask. However, when I try to setSigningKey for the account by code, it prompted “Error: Failed to ChangePubKey authorized by ECDSA.: Account does not exist in the zkSync network”.
After testing, I found: await syncWallet.getAccountId() == undefined. That's the problem.
The code worked for some other accounts. So it is not the problem of the code.

Expected Behavior

I can set signing keys for the account through ChangePubKey successfully.

Code Example

      const eth_endpoint = process.env.ETH_ENDPOINT;
      const syncProvider = await zksync.getDefaultProvider('mainnet');
      const ethersProvider = new ethers.providers.JsonRpcProvider(eth_endpoint);
      const ethSigner = new ethers.Wallet(privateKey, ethersProvider);
      this._syncWallet = await zksync.Wallet.fromEthSigner(
        ethSigner,
        syncProvider,
      );
     
          if (!(await syncWallet.isSigningKeySet())) {
        if ((await syncWallet.getAccountId()) == undefined) {
          throw new Error('Unknown account');
        }

        const changePubkey = await syncWallet.setSigningKey({
          feeToken: 'ETH',
          ethAuthType: 'ECDSA',
        });

        await changePubkey.awaitReceipt();
      }

Repo Link (Optional)

No response

[herryho]

@bxpana

[bxpana]

It sounds like you are using zkSync Lite if you are getting the ChangePubKey error https://docs.zksync.io/api/sdk/js/accounts/#sign-zksync-changepubkey.

Are you trying to build on zkSync Lite or zkSync Era? Also which docs are you using to help you?

[herryho]

You are right! I wasn't aware that the changepubkey function is specific for zksync lite. I was very curious that why there are two js sdk. So I know now, "zksync" is for zksync lite, while "zksync-web3" is for zksync era.

Problem solved!