Questions tagged [ropsten]
Questions related to the Ropsten testnet: https://blog.ethereum.org/2016/11/20/from-morden-to-ropsten
376
questions
1
vote
0answers
13 views
Testing response times using Ganache
If you want to simulate repsonse time of your smart contract, how realisitc is it to use ganache? I'm thinking that in a live network, ropsten for example, there would be a lot more transactions ...
1
vote
1answer
23 views
How to read blockheaders of Ethereum Blockchain?
TO be specific, how to read block headers of Rinkeby on Ropsten blockchain?
Since both the blockchains are public test networks, reading data of one blockchain on another should be possible using ...
1
vote
2answers
53 views
gas required exceeds allowance (8000029) or always failing transaction
When executing this function, I get an error gas required exceeds allowance (8000029) or always failing transaction i know that this error have when use transferFrom function. Where i wrong? help me ...
1
vote
0answers
36 views
Metamask always show '0' for gas price and value
I tried to deploy and execute some transactions on multiple contracts but Metamask keeps showing 0 for the gas price and value field. I am on Ropsten test network. It is not specific to any contract, ...
0
votes
1answer
37 views
Should i move my erc20 token from ropsten to main network?
I have just created token in ROPSTEN network, so Im confused now... Can I use my tokens in main ether network (sel, give, etc) or I just van play with them in test network and forget...?
Should i ...
0
votes
2answers
43 views
Setting a value for ERC20 token on private blockchain?
Background:
Currently we have an Dapp running on Ropsten. We've created an ERC20 token on Ropsten. Our employees are awarded these tokens over time. We want to use Dappos to allow our employees to ...
0
votes
1answer
31 views
wallet of goods [closed]
I sell goods for tokens. And I would like to make a wallet of goods for each user. So that he sees the amount of each product that he bought. Can I realize this in solidity? For example: through ...
0
votes
2answers
16 views
pay for goods with tokens
I pay for goods with tokens. But after the first call to the function, tokens are not removed from the wallet. Please tell me why when I call the function for the first time, tokens are removed, but ...
1
vote
1answer
17 views
Problem with contracts being deployed multiple times in Node.JS backend
I have a Javascript frontend that passes records in a JSON to the backend via Express to be deployed to the blockchain (currently using Rinkeby) with truffle-hdwallet-provider. This appears to work ...
1
vote
0answers
40 views
Why can I only deploy approx. 3 smart contracts per minute with infura using Ropsten and Rinkeby
I have created a Dapp that is written in Solidity and compiled with Truffle on both Rinkeby and Ropsten. I have also created a frontend for batch file uploads and a backend for the actual deploying ...
0
votes
1answer
13 views
Testing Smart Contract with multiple clients
After deploying a smart contract on Ropsten Testnet using Truffle framework, we can use truffle tests to do unit testing (create a client to interact with the deployed contract). My question is, how ...
0
votes
1answer
59 views
“truffle migrate --network ropsten” stuck after compiling
I am trying to redeploy a contract on Ropsten Testnet using the command:
truffle migrate --reset -f 1567182283 --network ropsten
Here, "1567182283" is the prefix of my migration file. Upon executing,...
0
votes
1answer
21 views
Redeploy contract on Ropsten Network
I have already deployed my smart contract on Ropsten network for testing using truffle suite. The command line I used was:
truffle deploy --network ropsten
Now, I have made some changes to my ...
0
votes
0answers
19 views
Import error when publishing source on Etherscan
I am attempting to publish my source code on Etherscan. When I compile, I get the following error. I assume that this callback is not reaching the destination.
myc:3:1: ParserError: Source "...
-1
votes
1answer
117 views
How can I get USDT Test Token [closed]
Can Anyone guide me on how to get the tether(usdt) test token on ethereum in ropsten test network
1
vote
1answer
24 views
How to deploy more than one contract with Remix
I'm trying to deploy my contracts with Remix to Ropsten, but I don't know how to do it. Can you help me?
(I have a ERC20 token contract, and a CrowdSale contract)
0
votes
0answers
62 views
How to connect to Etherscan Ropsten API using python
I want to connect to the etherscan Ropsten test-net with python:
URL = 'https://api-ropsten.etherscan.io/api?module=contract&action=getsourcecode&address=...
1
vote
2answers
51 views
The method eth_sendTransaction does not exist/is not available, when using Ropsten Network
My following code previously works perfectly at Ganache, but when i switched it to Ropsten Network, it give captioned error.
Here is Code:
async function finalSettersFunctions(){
var myFunc;
...
0
votes
1answer
131 views
UnhandledPromiseRejectionWarning: Error: Returned error: nonce too low
I am trying to deploy some contracts on Ropsten network. Here is my code
async function finalDeploy(r){
for(i=0; i<constructorParams.length; i++) {
const options = {
data: '0x' + ...
0
votes
1answer
68 views
Ropsten Blockchain Size on Disk December 2019?
Hello what is the size of the Ropsten Blockchain, on disk, using Parity with full trace on?
(Info required to provision a VPS).
0
votes
1answer
73 views
How to create account using mnemonic words or private key in web3js and call contracts using that account
I have a simple React Project with web3@1.2.4 installed and I want to call a contract's method like this:
await maincontract.methods.CurrentMethod("arguments").send({ from: accounts[0]/*my account ...
0
votes
0answers
19 views
Truffle to Ropsten Testnet Deployment Issue: No migration
I am trying to deploy my contract on Ropsten test network through Truffle Framework. I use the command truffle migrate --network ropsten.
Following is my truffle-config.js:
const HDWalletProvider = ...
1
vote
1answer
79 views
Why does Ropsten faucet show “Your account is grey listed for 0 hours and 0 minutes”?
I am requesting test ether from a Ropsten faucet, but it is showing an error. Please help me to resolve this error.
0
votes
1answer
37 views
Deploy smart contract on Ropsten, Kovan
When I deploy my truffle smart contract on test networks like Ropsten and Kovan, can I interact with it using multiple PCs at once simultaneously?
And will the data updated from one PC be visible on ...
0
votes
1answer
58 views
NodeJS + Web3 + Infura Ropsten - Error: Invalid JSON RPC response: “”
I have problem with invalid response to ethereum from BE NodeJS app.
I got error like:
Error: Invalid JSON RPC response: ""
Below I'd attached my simple code for testing connection.
const Web3 = ...
1
vote
0answers
26 views
How to recieve notification of incoming transaction in metamask mobile in real time
I have a erc-20 token in the ropsten testnet and i am using my metamask for admin my token, and i just want to recieve a notification via sms, to take screenshot, whatsapp or another way frendly user, ...
1
vote
1answer
297 views
Error while buying test ether from https://faucet.metamask.io/ - Mastering Ethereum
I am using Ethereum wallet MetaMask chrome extension and I am connected to Ropsten test network. I am following the instructions from the book Mastering Ethereum: Building Smart Contracts and DApps ...
0
votes
2answers
22 views
Function does not return value on ropsten [duplicate]
This code returns the address perfectly when i run it on ganache local chain but when i run this on ropsten it just returns a "-"
Any idea on what the problem is?
function newMatch(uint _matchId,...
2
votes
1answer
106 views
Error trying to get events in web3.py via Infura
I was trying to get all events from my smart contract (in Ropsten) via Infura node.
The problem is that I know that Infura does no support creating filters, but I don't know how to get events by ...
2
votes
1answer
56 views
Who confirms Ropsten and Rinkeby transactions?
Basic or more like "fundamental" question I guess:
So if I got that right, each time someone runs Geth/Parity or other software they all become part of the EVM (ethereum virtual machine). However ...
1
vote
1answer
70 views
Problems calling function with web3 from python
I was trying to call a function from my python server to a contract deployed in Ropsten.
This is my method in the contract:
function send(address receiver, uint amount) public {
require(msg....
0
votes
1answer
38 views
Error sending ether to a a smart contract deployed in ropsten with web3 with python
I am trying to send ether to a smart contract deployed on ropsten via infura, but I am having some problems in txn.
The error is "Error in Txn: Reverted".
The sender account has enought ether to ...
0
votes
0answers
14 views
How can I find reliable Ropsten nodes for adding to my nodes whitelist?
After the recent hard-fork on Ropsten we follow the tip on peter_szilagyi tweet to add a peer whitelist.
In case we want to add more nodes to our whitelist as in Connect to static nodes. where can I ...
0
votes
0answers
8 views
If I'll remove the peer whitelist that I've added after Ropsten hard-fork split while longest chain exists, how the node react?
After Istanbul Ropsten hard fork split, I followed whitelist tip - https://twitter.com/peter_szilagyi/status/1178634327518781441.
How a node will react in case I'll remove the whitelist while the ...
1
vote
0answers
114 views
Ganache is not showing any events
I have a contract method which emits events but ganache seems not to catch any events. I say this because when I deploy my contract on ropsten the events are being caught fine but only in ganache I ...
0
votes
1answer
27 views
Does transaction hash in Ropsten ( testnet) deprecate ever?
I want to know whether transaction hash created in testnet stay forever or after sometime it gets deleted? Like in IPFS garbage collector deletes unpinned files after two weeks. IPFS is also ...
1
vote
1answer
37 views
Different gas usage of trivial reverting contract function
We are currently testing functions on Ropsten test network and have an issue regarding the gas usage. Our functions sometimes use 12 gas more and we can not fathom why that would be the case. To test ...
0
votes
1answer
90 views
web3.js keeps throwing “error: insufficient funds for gas * price + value” on ropsten
I have been chacking around the site for possible solutions but i havent found any that would solve my (probably most basic) error. The account from which i'm sending has around 1 ether and i'm ...
1
vote
0answers
22 views
How a contract on Ropsten (deployed after fork) emit 3/5 events on the shorter chain while same contract on longer chain emits 5/5 of the events
General info:
We have a full-node, which broadcast our txs.
We have a EventSource contract which contains 5 events types.
The eventSource contract deployed only after Istanbul fork. Our node was ...
1
vote
1answer
61 views
Cannot deploy new contracts with pending transactions (Ropsten)
I have a very strange and annoying problem. I am trying to deploy a new contract however it just keeps cycling. I have the same problem on the POA testnet and on Ropsten. Please see below:
I have ...
0
votes
1answer
68 views
Need a guide to access my ropsten test network contracts through my command line and not remix
I have written and published a contract on the ropsten test network using remix. Now I want to access the functions of the smart contract from my command line (My PC) and not the remix IDE. Is there a ...
0
votes
0answers
23 views
Can't migrate, ropsten randomly throws out of gas
I have the following migration files with 50 contracts' deployment and their setup (calling each other functions like privileges, access and so on):
On the development network everything works fine. ...
0
votes
0answers
51 views
Getting empty events in response of receipt. I am using Infura+web3.js+ropsten
JS code
contract.methods
.myFunction(
"data1",
1568545262,
1568631662,
1568718062,
"0xD4496dA2a4b376fC8s4d786EB6B71483436077c4"
)
.send({
from: "...
0
votes
0answers
343 views
Why my geth fast node suddenly stopped running?
Fatal: Error starting protocol stack: gap (#3) in the chain between ancients and leveldb
when I run geth node for ropsten by :
geth --testnet --syncmode "fast" --cache=512 --rpc --ws --shh console
...
0
votes
0answers
25 views
Contract deployed successfully on localhost and mainnet, but gives error on rinkeby and ropsten
I tried to deploy a contract to rinkeby then on ropsten, but getting an error:
Network ropsten-fork
Minting initial supply of 5000000000 ...
Error: Error: Error: invalid address (arg="_to", coderType=...
1
vote
2answers
61 views
“Gas estimation failed” on Ropsten with Invalid RPC JSON
I'm running into an issue going through a basic example in "Mastering Ethereum"...
I have a Faucet contract (on Ropsten) per the book that looks like...
pragma solidity ^0.5.1; //mastering ethereum ...
1
vote
0answers
18 views
Unknown account error when initiating transactions from remote node
I am using Ropsten network and trying to transfer ether from my metamask account to my another account using geth client. I am using the methods like eth.signTransaction, eth.sendTransaction in CLI, ...
2
votes
1answer
33 views
How to know in advance the gas used by a transaction?
I want to send an ERC20 token (Ropsten network). So I execute a function 'transfer' on a contract. When The transaction is sent, I can get the gas used in the receipt. Few months ago this amount was ...
0
votes
1answer
176 views
Error: Invalid JSON RPC response | ropsten.infura
I'm trying to deploy my contracts to the ropsten test network, but I get this error.
the message error :
C:\Users\acer\test>truffle migrate --reset --network ropsten
Using network 'ropsten'.
...
2
votes
2answers
47 views
Troubleshooting a revert on Ropsten
I’ve deployed a contract to Ropsten and am testing it manually with Remix. This transaction reverts for whatever reason (we have unit tests where everything looks fine).
In our contract for all of ...
