Getting Invalid number of parameters for undefined when deploying smart contract

0 votes

I'm trying to deploy my first Voting contract on the testRPC and the below is my code.. I am not able to deploy it. 

The error seems to be from the arguments parameter. I tried passing an empty array and it said "Got 0 expected 1!". I tried passing just one name and it says "value.forEach" is not a function.

Web3 = require('web3')
web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
sourceCode = fs.readFileSync('Voting.sol').toString()
solc = require('solc')
compiledCode = solc.compile(sourceCode)
abiDefinition = JSON.parse(compiledCode.contracts[':Voting'].interface)
VotingContract = new web3.eth.Contract(abiDefinition)
byteCode = compiledCode.contracts[':Voting'].bytecode

VotingContract.deploy({
    data: byteCode, 
    arguments:['Joseph','Sean','Matthew']
}).send({
    from: '0x00D1AE0A6fC13B9ecdefA118B94cF95ac16D4ab0', 
    gas: 4700000
})
.on('error', function(error) {
    console.log(error);
}
.then(function(newContractInstance) {
    console.log(newContractInstance.options.address)
}
Oct 10, 2018 in Blockchain by digger
• 26,740 points
2,891 views

1 answer to this question.

0 votes

Try something like this for contracts that need constructor arguments

var bytecodeWithParam = MyContract.new.getData(
    param1,
    param2,
    { data: compiledByteCode });

It is this bytecodeWithParam that you paste into the "Byte Code" field. If you look at it in detail, you will see param1 and param2 32-byte packed at the end.

Another Example

var MyContract = web3.eth.contract(abiArray);

// instantiate by address
var contractInstance = MyContract.at(address);

// deploy new contract
var contractInstance = MyContract.new([constructorParam1] [, constructorParam2], {data: '0x12345...', from: myAccount, gas: 1000000});

// Get the data to deploy the contract manually
var contractData = MyContract.new.getData([constructorParam1] [, constructorParam2], {data: '0x12345...'});
// contractData = '0x12345643213456000000000023434234'
answered Oct 10, 2018 by Omkar
• 69,210 points

Related Questions In Blockchain

0 votes
1 answer

Can a hacker change data of a smart sontract without call contract function?

A contract's content cannot be changed internally. ...READ MORE

answered Apr 8, 2018 in Blockchain by Shashank
• 10,400 points
458 views
0 votes
1 answer

How do I send back ethers to the sender of the tokens in a smart contract?

Whenever a smart contract receives ether via ...READ MORE

answered May 30, 2018 in Blockchain by Perry
• 17,100 points
3,338 views
0 votes
2 answers

How to get notified when an event triggers on ethereum smart contract?

Muchas gracias. ?Como puedo iniciar sesion? READ MORE

answered May 2, 2020 in Blockchain by aqowcmbevs
2,143 views
0 votes
1 answer

Where are the transaction details of a smart contract is written in Ethereum?

First ques:where in the blockchain is a ...READ MORE

answered Jul 11, 2018 in Blockchain by Shashank
• 10,400 points
596 views
0 votes
1 answer

Truffle tests not running after truffle init

This was a bug. They've fixed it. ...READ MORE

answered Sep 11, 2018 in Blockchain by Christine
• 15,790 points
1,655 views
0 votes
1 answer

Hyperledger Sawtooth vs Quorum in concurrency and speed Ask

Summary: Both should provide similar reliability of ...READ MORE

answered Sep 26, 2018 in IoT (Internet of Things) by Upasana
• 8,620 points
1,211 views
+3 votes
2 answers

How to run ethereumjs using Node.JS

You need to install testrpc globally on ...READ MORE

answered Mar 27, 2018 in Blockchain by ned_crew
• 1,610 points
939 views
+1 vote
4 answers

How to estimate the cost for deploying smart contract on mainnet?

Since you have already deployed the contract ...READ MORE

answered Apr 10, 2018 in Blockchain by Shashank
• 10,400 points
14,626 views
0 votes
1 answer
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP