error on deploy a Safe on Sepolia with v1.4.1

Question

i use all the info in here https://github.com/safe-global/safe-deployments/tree/main/src/assets/v1.4.1 to deploy a new Safe on sepolia.

i use createProxyWithNonce(address _singleton,bytes initializer,uint256 saltNonce) on the safeProxyFactory, for the params i put:

• _singleton i put the safeL2 address
• to compute the initializer i use the pack "setup" from safe_l2 abi

safeL2abi.Pack("setup", owners, threshold, to, data, fallbackHandler, paymentToken, payment, paymentReceiver)

• and a big Int for the saltNonce

first is it the right one to use, if not what is it? because i got an error on the singleton

   constructor(address _singleton) {
        require(_singleton != address(0), "Invalid singleton address provided");
        singleton = _singleton;
    }

tx: https://sepolia.etherscan.io/tx/0x1e22c80dcfa2a9072b2dd849b9ee651ce9f72d23b64afe3f7c2ad96c10ab9ad9

then to what will be the steps to calculate the future target address for the Safe?

Answer 1

Thanks for reaching out. I haven't looked thoroughly into your error, but I can point you to our protocol kit, where there is class SafeFactory that exposes a predictSafeAddress method where a deterministic Safe address is calculated from your configuration.

Does this help?