Questions tagged [ropsten]

Questions related to the Ropsten testnet: https://blog.ethereum.org/2016/11/20/from-morden-to-ropsten

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Ethereum data reading and writing time fluctuation for web3

I have created a web app for sending and receiving data in ropsten testnet. The average result of writing Data to the blockchain and reading it. The average is calculated for 5 transactions. Here data ...
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17 views

is it possible to change block' gas limit?

I'm trying to execute some heavy transactions. Before execute it, Remix advises me about the gas limit: Ok, then I change my gas limit on Metamask to 9,000,000 (I'm on Ropsten network): And finally, ...
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22 views

Gas estimation errored with the following message error upon contract deployment

I am trying to deploy my contract CoinFlip on Remix using Injected Web 3 (Ropsten, Metamask) but I am getting the gas estimation error. I'm not sure where the error is coming from. I also tried ...
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1answer
67 views

Ropsten “exceeds block gas limit”

I am on GETH, 1.9.23 and I have had a smart contract running for more than 3 months now. Suddenly, all transaction failed with "exceeds block gas limit". I checked the Ropsten Testnet and ...
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18 views

Ropsten Node finally synchronized after 3 days: why a blockchain testnet should be so difficult?

I have started a new Ropsten Node running on a Pi4 4GB. Here is the relevant information for those who might want to start a new Ropsten Node: more than 3 day syncing $ geth --ropsten --datadir /mnt/...
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1answer
35 views

this error while sending transaction using infura.io . The method eth_sendTransaction does not exist/is not available,

My ERC20 token dapp is giving an error only while using 'transfer function' even when I am using a given address as defaultaccount ( otherwise the error was "No "from" address specified ...
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1answer
30 views

How to handle Ropsten's smart contracts with Truffle?

I work with Truffle, Metamask, and Windows Powershell. I deployed my smart contract to Ropsten with Truffle by the below command in Powershell: truffle migrate --network ropsten Now, I need to ...
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2answers
76 views

Block gas limit lower than required to deploy a contract

I am trying to deploy a contract on ropsten network that requires ~7000000 gas, however the current gas limits are ~3.5mil on ropsten and I am unable to deploy the contract. What can I do about this?
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1answer
29 views

msg.sender.balance showing incorrect amount

I've written a smart contract that should return the balance of the current user using it and for some reason when I call the function it's returning the incorrect amount. I've used Remix and the ...
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1answer
29 views

Ethereum is not transferred on Ropsten network

Here's my code for signing nd sending a transaction on Ropsten testnet which is working properly. However, the value that is set to '1' eth is not transferred to the target address. var Tx = require('...
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1answer
34 views

Receiving 'undefined' when using getBalance from web3

I am trying to fetch the balance of an address by web3 and node from Ropsten network with the commands below: var Test = require('web3') var url = 'https://ropsten.infura.io/v3/...' var web3 = new ...
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2answers
70 views

How to get transaction hash without waiting for await call?

for my demo I need the transaction hash instantly without waiting for callback of sync call. Here my code: aggiungiAllaBlockChain: async(u,n,c,e) => { try { const web3 = new Web3(App....
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1answer
29 views

Remix Error - Trying to Follow Ropsten Faucet Instructions

I have been trying to get testnet Ethereum from Ropsten using Metamask wallet but instead I am getting errors. What am I doing wrong? Here is what the Ropsten Faucet site said and the error on Remix ...
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2answers
24 views

Why do I pay fee for reading transaction on Ropsten?

I have a doubt. I am using truffle with meta mask to deploy Smart Contract, write transaction and read transaction on Blockchain. Why do I pay fee for reading data on BlockChain? Should it be free? I ...
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1answer
32 views

Run my code on Ropsten network without using Infura

As I understood, Infura is a remote node give us the ability to interact with the network if we do not want to download the full node in our machine. If I understood that correctly, can I download the ...
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1answer
51 views

How Can I use my Metamask accouns to deploy a contract using Truffle

I have the full geth node on my machine and want to deploy my smart contract on ropsten using truffle. In truffle.js fileI have connected to the node as the following: ropsten: { host: "...
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2answers
53 views

Fund my Ropsten account to deploy my contract

I have a full geth node on my machine and I want to deploy my contract on Ropsten using truffle. How I can fund my coinable account with some ether to deploy my smart contract? I have tried fuusent....
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44 views

My activity is erased from the Ropsten testnet

I am new to blockchain development, and I just deployed a Token creation contract yesterday to the Ropsten test network. After creation, the token showed up properly with the correct supply on the ...
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1answer
131 views

Run Geth with a configuration file

I've created a config.toml for Ropsten (NetworkId =3) that looks like this: https://pastebin.com/raw/2DxWE1jf But when I run geth --config /home/path-to-config From the cli I get: (Note ChainID:1, ...
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33 views

(closed) I deployed the contract with remix but truffle didn't deploy, why?

i want to deploy my contract to Rinkeby or Ropsten testnet with truffle. But I give an error like this: ran out of gas (using a value you set in your network config or deployment parameters.) * ...
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1answer
46 views

contract deploy error for ropsten

I try deploy a contract to rotten network with truffle. I checked the last gas limit value in ropsten and I give the gas limit value of the last block But I get this error: "Migrations" ...
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1answer
47 views

error deploying token to ropsten using remix

I am trying to deploy my token on Ropsten Network using REMIX IDE, but keep getting this error "contract may be abstract, not implement an abstract parent's methods completely or not invoke an ...
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24 views

Subscribing to new blocks doesn´t work [ROPSTEN]

I'm trying to subscribe to newBlockHeaders on the ropsten network, but it does not seem to work. The following code works for mainnet but not ropsten. Any ideas? const Web3 = require('web3') const ...
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1answer
44 views

ETH not showing up

To help me get started learning how to create contracts, I had 1 ETH sent from the Ropsten Ethereum Faucet to my MetaMask address. It arrived fine, but when I tried to send it to MyCrypto address it ...
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1answer
167 views

Transactions stuck at pending on ropsten test net from one day

I am Writing a simple script for ERC20 token transfer method. which sign transaction offline and then submit it to network. Transfer method encoded data : var encoded = await MyContract.methods ...
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1answer
66 views

How to re-compile contracts using truffle which are updated?

I deployed something in the test-net(ropsten). Later, realized that one of my contracts needs some amendments. In such cases how to compile specific contracts and deploy only that contract using ...
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1answer
52 views

Contract not showing the name and symbol

I deployed a contract on ropsten but it was not showing the name and the symbol. I have the feeling that there is something wrong at the deployment and I think it has to do with the parameters. As you ...
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32 views

ROPSTEN - successfuly broadcast but there is not in etherscan site

I create a transaction hash raw and using by MyEtherWallet's send offline tools, broadcasting it. But when I go through the provided link in etherscan site, it shows me: Sorry, We are unable to locate ...
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1answer
70 views

The send transactions “from” field must be defined using Infura web3

when I try to send my transaction using infura I get this error "The send transactions "from" field must be defined" My problem is my web3 object. When I used Metamask and ...
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25 views

Is possible to use a smart contract with custom buyTokens method in TestNet?

I'm trying to test a smartcontract in TestNet that is working in my private ethereum blockchain network. I can deploy it in Ropsten and Rinkeby, but I can not execute my buyTokens method from Remix. ...
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1answer
345 views

I am getting Error: Project ID is required deploying to ropsten in truffle

I am getting the following error: Error: PollingBlockTracker - encountered an error while attempting to update latest block: Error: project ID is required at C:\Users\myuser\Code Projects\sdfsd\...
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53 views

Geth transaction pending on Ropsten testnet that will not send

On a Raspbian linux system I have been using geth --testnet --syncmode light to sync the Blockchain in one terminal and running geth --testnet attach in the other, but when the Blockchain is synced I ...
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1answer
63 views

Ropsten Etherscan shows 0 holders for my token

I created ERC20 compliant token on Ropsten testnet. I set in constructor that all of the token supply is added to my wallet address. When I open the metamaks I see that I have the tokens. Here's the ...
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2answers
25 views

Deploying App on Ropsten or any Test Network

I have a web3.js application which uses truffle and interacts with smart contracts deployed on Ganache. How do I deploy my smart contract on a Test Network and interact with it through my application?
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35 views

Syncing Poblem With Parity Docker Container

I'm running a Parity node inside a docker container and i'm trying to sync it to the ropsten network. However after around 1300-1700/4257 snapshots synced I keep getting Encountered error during ...
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2answers
112 views

Number of state entries needed before geth node is synced up with Ropsten

I am currently syncing a Geth node with the Ropsten network. Currently the download in the terminal show a neverending stream of Imported new state entries. I understand that I have to wait for all of ...
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1answer
51 views

Error when sending multiple transactions

I'm having a weird issue with the code below in that sometimes it works and sometimes it doesn't. It seems more apparent when TRANSACTIONS is set to a larger number. I have had it fail AND pass with ...
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1answer
56 views

Call Result Returning Wrong from Proxy Contract [closed]

I published my proxy (AdminUpgradeabilityProxy) and logic contract to Ropsten Test network. But my call result is returning wrong value through the my proxy contract. For example I call to ...
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121 views

Could not transact with/call contract function, is contract deployed correctly and chain synced?

i got "web3.exceptions.BadFunctionCallOutput: Could not transact with/call contract function, is contract deployed correctly and chain synced? " error when try to run this code: from web3.auto.infura ...
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2answers
274 views

Truffle deployment error while deploying with Infura (Error: Callback was already called)

I am trying to deploy a token smart contract to Ropsten test network with Infura, but I am always getting an error as I am using truffle migrate --reset --network ropsten_infura Compiling your ...
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1answer
70 views

Does Gas Price Affect TX minng priority [ROPSTEN]

Since ether, on the ropsten network, virtually isn't worth anything does the gas price for transactions affect the priority in which they're mined? I'm asking because web3.eth.getGasPrice() (on the ...
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2answers
89 views

gas exceeds allowance

I'm testing my smart contract on ropsten and I have written an async function that lets me send TRANSACTION transactions from TRANSACTION different accounts. For some reason when TRANSACTION > 20 i ...
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1answer
53 views

What's going on with the Ropsten network

What is going on with the Ropseten testnet? The last block(7752138) was mined at 07:24:17 AM +UTC which was, at the time of writing this, 23minutes ago. https://ropsten.etherscan.io/block/7752138
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1answer
20 views

why does not shown the holders number and transfers of the custom ERC20 token in Ropsten? [closed]

I published an ERC 20 token on Ropsten. The token's total supply, name and symbol shows on the self page (https://ropsten.etherscan.io/token/..) but the holders number and transfers are not shown. The ...
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0answers
36 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 ...
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1answer
36 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 ...
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2answers
4k 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 ...
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0answers
192 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, ...
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1answer
292 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 ...
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2answers
145 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 ...

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