Failed to fetch gas estimate

[DarcyLau]

When I call a contract method and get this error,
`let url = URL(string: nodeAddress)
let web3 = try Web3.new(url!)
web3.provider.network = Networks.Custom(networkID: BigUInt("666666"))
web3.addKeystoreManager(self.keystoreManager!)

            let walletAddress = EthereumAddress(fromAddress)! // Your wallet address
            let contractMethod = "addRig" // Contract method you want to call

            let filePath = Bundle.main.path(forResource: "pledge4thor", ofType: "abi")!
            let contractABI = try String(contentsOfFile: filePath) // Contract ABI

            let contractAddress = EthereumAddress(contractAddressStr)!
            let abiVersion = 2 // Contract ABI version
            let contract = web3.contract(contractABI, at: contractAddress, abiVersion: abiVersion)!
            var options = TransactionOptions.defaultOptions
            options.from = walletAddress
            options.gasPrice = .automatic
            options.gasLimit = .automatic
            options.value = Web3.Utils.parseToBigUInt("99", units: .eth)
    
            let parameters = [rigStr as AnyObject]
            
            let tx = contract.method(contractMethod, parameters: parameters, extraData: Data(), transactionOptions: options)
            tx?.transaction.nonce = try (web3.eth.getTransactionCount(address: walletAddress))
    
            let result = try tx?.send(password: "q12345678", transactionOptions: options)`

and this is my func in abi:
{
"inputs": [
{
"internalType": "bytes32",
"name": "rig",
"type": "bytes32"
}
],
"name": "addRig",
"outputs": [],
"stateMutability": "payable",
"type": "function"
}

so I'v seen this error before, that time I deleted the line to set options.value and put amount in parameters, this time when I tried like this, the transaction returned nil

[DarcyLau]

So I tried to send a rig which length is 32, it works fine, but the rig I got is a 66 length string, how should I do

[dangell7]

This is an issue with your parameters typically.

Transfer Example:

let parameters = [
    ethBeneficiary as Any,
    weiValue as Any,
] as [AnyObject]
let transaction = contract.write(
    "transfer",
    parameters: parameters as [AnyObject],
    extraData: Data(),
    transactionOptions: options
)

[dangell7]

Another reason is because the contract is rejecting the transaction.

For instance, I just got the same error because the user submitting the transaction was not an owner on the contract.

Not sure if this is EXACTLY correct, but I added the user as an owner, and then the transaction went through.

[Iysbaera]

@DarcyLau Hey, did you find a solution for this issue?