All Questions
9 questions
1
vote
1
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858
views
I got this error during truffle testing. AssertionError: it returns true: expected { Object (tx, receipt, ...) } to equal true
DappToken.sol
function transfer(address _to, uint256 _value) public returns (bool success){
require(balanceOf[msg.sender] >= _value);
balanceOf[msg.sender] -= _value;
balanceOf[...
- 107
1
vote
1
answer
300
views
Truffle migrate not working
Every time I enter truffle migrate command in the terminal it doesn't do anything but takes some time and nothing happens after that. I am using Truffle version 5.0.4
- 11
1
vote
0
answers
30
views
Wallet files in a Dapp
I am developing an application from the truffle webpack and I have created my own wallet, adding my account to a json file:
$.getJSON('../wallet.json', function(data) {
var password = "xxx";
...
- 511
0
votes
1
answer
369
views
DeclarationError: Identifier not found or not unique when deploying a facotry contract
I am using truffle with angular to write DAPP. I have a factory contract which will deploy an other contract named rental through a function called newContract. here is my factory contract
pragma ...
- 237
1
vote
1
answer
880
views
Setup Ethereum-Wallet as geth RPC
I develop a dapp with truffle.js and wish to deploy to the live network. I have the Ethereum Wallet already installed (mac osx), and I'm pretty sure it runs on top of geth - am I correct? Anyway, does ...
- 581
1
vote
1
answer
88
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Which one of methods should I choose for deployment of smart contract geth or a wallet if I have to build API for smart contracts in nodejs?
I'm having trouble to understand which method would be better for deployment geth or a wallet if I'm building API in nodejs using web3.
Where exactly is the contract stored??
Is the contract ...
9
votes
1
answer
8k
views
Could somebody please explain in detail what this Ethereum contract is doing?
I am new to ethereum & blockchain technology and trying to understand somethings(Etheruem, Truffle, DApps etc.) here and there from the internet.
From Ethereum official website,
Create a ...
- 391
3
votes
1
answer
614
views
Truffle Migrations missing ConvertLib.sol, etc
Using testrpc v3.0.3 and solidity
Getting the above error while deploying this contract in testrpc private net
pragma solidity ^0.4.4;
import "./ConvertLib.sol";
import "./Agreement.sol";
contract ...
1
vote
1
answer
479
views
How to access variables defined in struct using 'Truffle'?
This is the sample contract given :-
contract User {
string public userName;
mapping(address => Service) public services;
struct Service {
...
- 1,174