Questions tagged [ropsten]

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

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I use 0x protocol on ropsten network, eth exchange usdt, it failed, why? [closed]

https://ropsten.etherscan.io/tx/0xb04868f0e1a0652d87f67d3604c360eaca554567cff7c17bc4ce91c22854ac2b I use 0x protocol on ropsten network, eth exchange usdt, it failed, why?
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14 views

Transactions revert for ropsten only

We use 0x for swaps on ethereum-mainnet, avalanche-mainnet, and polygon-mainnet and all is generally working. Previously we would also use kovan for testing, but recently moved to ropsten as 0x is ...
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1answer
23 views

Method works on local but fails on Ropsten [closed]

Trying to debug this transaction (it's a large one that deploys a contract) that works on local but fails on ropsten. First, it said Error: cannot estimate gas; transaction may fail or may require ...
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22 views

Ropsten testnet vs ETH mainnet erc20 contract

I was trying to c/p a contract and change tax wallet address for buy and sell transactions, but the function is not working properly on Ropsten as it works on mainnet. Tax is charged, but not send to ...
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76 views

"TypeError: Cannot read property 'sendTransaction' of null" error when deploying to Ropsten testnet using hardhat

I am getting the error: TypeError: Cannot read property 'sendTransaction' of null at ContractFactory. (/Users/UserName/Downloads/nft-marketplace-ethereum/node_modules/@ethersproject/contracts/src.ts/...
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23 views

How to mine Ropsten Ether on Windows

How do I mine ropsten ethereum on a solo computer? I'm making something, and I need a large amount of coins to test my application! I know there are faucets and stuff, but I need to make larger ...
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1answer
24 views

Import 100k records into contract

I have a contract in which I must import ~100k ETH addresses into a map. Whenever I try to do that on Ropsten network (via Infura), I receive the error: Error: exceeds block gas limit If I try to do ...
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2answers
21 views

How do I execute functions in my ERC20 token?

How can I manage to execute functions from my ERC20 token created with remix solidity and deployed on the ropsten test network? I was able to import it to my metamask account but I want to perform ...
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23 views

Ropsten Eth getting stolen?

I requested Ropsten Eth from a faucet into my Ropsten address. Noticed in the activity tab that I've received the rEth but it still shows 0. When on ropsten etherscan and found that all the ropsten I'...
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1answer
19 views

Contract not showing the name, symbol, and supply

I am not able to see the name, symbol, and supply on the smart contract at ropsten. pragma solidity ^0.8.0; contract MyToken{ address public minter; mapping(address => uint) public balance; string ...
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7 views

The method eth_sendTransaction does not exist/is not available [Web3js + Infura + Ropsten] [duplicate]

I have deployed two contracts on Ropsten and used Infura as a node. When I run my project locally with truffle and Ganache everything works fine. However when I try to run my webapp with Ropsten I get ...
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27 views

Web3 Contract events not working on Ropsten testnet

Despite assuring that all event subscriptions are done through a websocket web3 provider instead of https, I still cannot get an event to return an info with " .on('data' ", however " ....
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1answer
24 views

Why do `view` methods revert without a reason when deployed to test networks, yet work fine on localhost?

I have been developing with Hardhat without problem. When I deploy my smart contracts to a test network (Ropsten or Rinkeby), none of my view methods work. For example: function testView() public ...
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34 views

How do I calculate the prices?

I have developed an app that swaps eth for dai in ropsten network using uniswap, but when I get to check the price of eth in dai I get a strange value, 95.9... Is it beacuse I am in Ropsten test ...
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1answer
23 views

ENSJS library problem reverse resolving addresses to ENS names

I am trying to use the javascript library "@ensdomains/ensjs" to reverse resolve some ethereum addresses in the ROPSTEN network. The problem I have is that the following instruction : var ...
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1answer
32 views

Geth Ropsten Syncing wrong Chain

I am trying to sync geth node with --ropsten CLI option and it completes syncing. But the latest blockchain number is different than ropsten.etherscan.io The block number keeps incrementing and ...
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1answer
30 views

My node running ropsten testnet has blocknumberlower than blocknumber on ropsten.etherscan.io

It returned false in rpc console after typing eth.syncing, and eth.blockNumber returned 11243029 while the latest block on ropsten.etherscan.io is 11258008, about 15000 blocks behind! Where's the ...
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1answer
36 views

Solidity function doesn't return any data when executed with injected web3 metamask

There is my code. getRight function doesn't return data when I run this code with injected web3 metamask but it returns data when I run it with JavaScript VM. I did it find where is the problem in ...
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103 views

MetaMask RPC Error: Already Known

I am trying to send a pair of transactions to a smart contract on Ropsten. I thought this might be a nonce issue on the second of the transactions where it wasn't being updated to a proper value but ...
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1answer
22 views

How can I get my money back, they gave me a fake ethereum token help

I was scammed 3hrs ago with ropsten test, I was buying an ethereum but the scammer gave me fake one. Can someone provide an option on how can I get my money back?
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147 views

Error! Invalid constructor arguments provided. Please verify that they are in ABI-encoded format, I tried (https://abi.hashex.org/) but still no luck

Good afternoon! I want to create a NFT and my code is working fine in remix. An error occurred while adding source code to ropsten: Error! Invalid constructor arguments provided. Please verify that ...
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1answer
33 views

i havent been able to get test ethers from any ropsten faucet [duplicate]

can anyone plz send me some test ethers on this address 0x2540faA5783D5347b2F622D599BdCA57034da31E it would be gret help
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1answer
74 views

Transaction hash has different block number on my ethereum ropsten testnet node

I have an ethereum ropsten testnet node, syncing status is false but i checked for the block number then I got the block number ahead of the actual current height. I then checked the transaction ...
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201 views

How to handle Ropsten's chain split with geth 1.10.8

I upgraded and restarted geth connected to Ropsten to 1.10.8, but the content is different from Ethrscan and infura.io from 10920274 block. And my geth has the latest block number of about 7,000 ...
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1answer
233 views

How to send a signed transaction using metamask and web3?

I'm stuck at sending a signed transaction to a Smart Contract deployed on Ropsten network. As learning purposes, I created a 'Voting' smart contract. This contract includes 2 candidates we can vote ...
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16 views

Ropstens test net. How do I solve this?

The picture below shows the wallet status of the Ropstens test server. How long do I have to wait to resolve it? How do I solve this? Where should I ask for help? My wallet is not working.
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25 views

What is the frequency of creation of each block in Ropsten testnetwork?

I woudlike to know what is the frequency of creation of each block on Ropsten ? In the ETH is like every 14.1s but in Ropsten ?
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16 views

How to deploy 3 pools in ropsten

I wouldlike to deploy 3 pools in ropsten with using masterChef contract. How can I do that ? I start with that : const MASTERCHEF_ABI = require('./abi/masterChef.json') const ownerAddress = "&...
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1answer
27 views

Unable to sync Ropsten testnet with Geth 1.10.5

I upgrade geth to latest 1.10.5 stable, but my local ropsten node is higher than etherscan. This is the command. geth --cache=4096 --maxpeers=50 --datadir=/data/eth --ethash.dagdir=/data/eth/ethash --...
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4answers
688 views

Good Ropsten USDC faucets?

I'm trying to play around with the DyDx Protocol on Ropsten, but to get any further I need to have some USDC in my account. I've had no luck googling for this. There seems to be this website for it, ...
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2answers
132 views

Where is the best place to acquire large amounts of testnet eth?

While there are fairly easy ways to get small amounts of testnet ETH (e.g., 1 ETH) through faucets. What would be the best way to get a larger amount of testnet ETH (10-1000) in a time-sensitive way?
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1answer
21 views

Problem with ropsten

I have a problem with Ropsten. I want to send a smart contract on Ropsten with the command "migrate --reset --network ropsten" but it does not work. I get this message: Everything is up to ...
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1answer
221 views

Error! Invalid constructor arguments provided. Please verify that they are in ABI-encoded format

Update: so these 2 lines in my code seem to be causing the problem and removing them got everything to work but I still need to include them so if someone can figure out why they are breaking that ...
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0answers
17 views

Has Ropsten Testnet support stopped?

I see a lot of questions regarding problems related to Ropsten Testnet. Has support stopped therefor? If so, was this a decision made by the community or does the testnet just need miners?
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1answer
641 views

Getting LINK for Ropsten network

I'm trying to get LINK for Ropsten. I'm using this faucet: https://ropsten.chain.link/ and, when I've added the new token, I've used this address 0x20fe562d797a42dcb3399062ae9546cd06f63280 (Chainlink ...
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1answer
52 views

How do obtain wrapped btc and wrapped ada in a local test network or a live test network like ropsten?

In the local test network and ropsten test network, it's easy to obtain ethereum but I need other tokens in order to do testing. I'm not sure how to obtain those tokens for testing.
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1answer
18 views

Having trouble converting json to abi encoding

I'm trying to convert the following json to abi code using https://abi.hashex.org/ [ { "inputs": [ { "internalType": "string", "...
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0answers
23 views

error on ropsten testnet

im getting this error on ropsten testnet when i am trying to buy my token after adding liquidity. "The output token cannot be transferred. There may be an issue with the output token." does ...
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1answer
1k views

How to fix "TypeError: Cannot read property 'sendTransaction' of null" when deploying a contract on Ropsten with hardHat?

I am getting this error: TypeError: Cannot read property 'sendTransaction' of null when running this command: $ npx hardhat run scripts/deploy.js --network ropsten with HardHat on Ropsten network. ...
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0answers
94 views

How do I find peers for a ropsten "light" node?

I'm using geth to spin a simple light node on ropsten. I'm running geth --ropsten --syncmode "light" console And it gets stuck after INFO [06-18|11:05:26.682] New local node record ...
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0answers
13 views

Why can't I send eth to this Smart Contract? [duplicate]

I am trying to send eth to an address of a contract which I deployed on ropsten testnet. When I tried sending eth for the first time. The transaction failed and I got an "out of gas error" : ...
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0answers
163 views

Metamask won't display balance on Ropsten test network

Going over first chapters Mastering Ethereum book, I've obtained some ether from a faucet on Ropsten Test network, but Metamask (after 2 days and 18K confirmations) still shows the balance of 0 ETH, ...
1
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1answer
216 views

Can i write in the data field of a transaction?

I read here Is it possible to insert some custom data in the DATA field of an Ethereum Transaction? that it is not possible to write in the data field of a transaction, even if it is a simple balance ...
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9 views

Any acc with eth is accessing my contrct restricted methods on rpstn ntwrk.It should give err but its not giving. On ganache its working as expected

I created one project, which is working perfectly on ganache. But whenever I deploy it on ropsten it is doing anything. I will explain in brief after opening my web app on browser if i try to call any ...
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0answers
11 views

Work with local copy of Ropsten without syncing

I have used Geth to successfuly download (and sync) with Ropsten network. Is it possible to use downloaded blockchain (reading blocks with Geth) without syncing with Ropsten? I would basically like to ...
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0answers
23 views

Can't find funded ropsten account using truffle console

I am not able to see my account on the ropsten network in truffle console when connecting to the ropsten network. I copied the mnemonic out of metamask and start truffle console with 'truffle console -...
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0answers
96 views

Fail with error 'UniswapV2Library: ZERO_ADDRESS' when trying to implement a swap

I am trying to implement a Ropsten Testnet swap via contract. This contract swaps Testnet DAI for a token I have created. Liquidity is added and swapping via the UI works. IUniswapV2Router02 private ...
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0answers
41 views

Ropsten light node block number ~1000 greater than it should be

I'm running geth on Ropsten, using geth --ropsten --syncmode "light" --http.addr localhost --http.port 8545 --rpc My most recent block number is 10266786 (and increasing), whereas etherscan....
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1answer
124 views

The cost of eth in the testnet is equal to the eth cost in mainnet?

i´m new in Ethereum development, i´m developing a Dapp in the Ropsten testnetwork but i need to pass it to the mainnet, have the sames cost? are equivalent in the moment we pass the Dapp to the ...
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0answers
236 views

Remix: Gas estimation errored with the following message (see below). (...) execution reverted

I am trying to deploy a smart contract on remix written in VYPER. The code for the simple open auction comes from the vyper documentation website. Remix compiles the code perfectly fine. However, when ...

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