kappa
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When migrating truffle second time, I get "Could not connect to your Ethereum client with the following parameters:"
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before deploying you have to run ganache-cli or any other client similar to it. try truffle develop before truffle migrate develop: { host: "127.0.0.1", port: 8545, network_id: "*&...

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How to deploy contract in Truffle Console using Ganache
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You have to deploy your contract before trying to access it.truffle migrate log shows that you didn't deploy your contract.For that you have add 2_filename.js before deploying

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2 answers
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71 views
View remote chain in GUI
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You can also use ganache-ui to check transaction log.Refer https://www.trufflesuite.com/ganache

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71 views
View remote chain in GUI
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use remix-ide https://remix.ethereum.org/.It is not a blockexplorer.But it will listen to all the events emitted by ganache-cli.

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2 answers
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145 views
Reinstalled Metamask, Accounts Gone!
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const Web3 = require('web3'); const HDWalletProvider = require('@truffle/hdwallet-provider'); mnemonic = 'enter your seed phrase here'//replace this with your seed phrase const provider = new ...

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1 answers
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Casting in solidity is painful
1 votes

uint digit_to_be_verified=0//0 for lsb input == bytes32(1<< 4 * digit_to_be_verified ) change digit_to_be_verified variable to verify any bit

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1 answers
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387 views
Automatically generate an address for a token in the ERC20 and TRC20 network
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1 votes

Use Metamask or truffle-hd-wallet-provider for creating address.You can create 'n' no of address

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1 answers
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108 views
mocha beforeEach is not running
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1 votes

beforeEach will get executed at before every it() function in mocha.so you have it() fn in your code as shown in code snippet below describe("Lottery", async () => { it('test1',async()=&...

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2 answers
2 votes
5k views
How to convert bignumber to normal number using ethers.js?
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const BigNumber = require('bignumber.js'); let num=new BigNumber(1252500000000000000) let denom = new BigNumber(10).pow(16) let ans = num.dividedBy(denom).toNumber() console.log(ans) Hope this ...

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32 views
Insufficent network fees
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For all transaction in Ethereum,gas fees are paid in its native currency, ether (ETH).So,you need to sufficient eth for transferring erc20 tokens too.

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1 answers
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21 views
Can ERC tokens change their creation code or parameters afterwards?
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No.Contract can't change its byte code once it has been deployed.

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184 views
How do I dynamically set in my Web3.js file the deployed smart contract's ABI & address?
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artifacts.require("<contract_name>") will fetch the contracts json file(which is generated in build folder after compiling every time) within truffle project.

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126 views
Truffle and Ganache GUI: GUI and blockchain disconnect or some other error
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Use ganache-cli instead of ganache-gui.//gui is not working properly few times.In addition to this,you can change the mnemonic by configuring truffle.js or truffle-config.js

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149 views
Set msg.sender in testing
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2 votes

Replace "=" with "==" in require statement : require(msg.sender == data[i].owner, "Sender is not owner.");

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