Questions tagged [ropsten]

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

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How to connect Dapp to Metamask and interact with smart contract deployed on Ropsten via Remix

I deployed a smart contract via remix to the ropsten testnet and now I want to interact with it via website(dapp). I am creating a auction dapp. The user has to input the amount of ETH he want's to ...
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10 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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My wallet is not working properly. Where should I ask for help? [closed]

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 properly.
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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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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
8 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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1answer
26 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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1answer
20 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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17 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
45 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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11 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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127 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
11 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
15 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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14 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
137 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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13 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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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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20 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, ...
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1answer
80 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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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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8 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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11 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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44 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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20 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
17 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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175 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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85 views

Sending ERC20 token between Metamask wallets over Ropsten test network

I'm experimenting with creating an ERC20 token and sending it over Ropsten test network using Metamask (following a basic tutorial). I was able to successfully create the token, deposit the tokens in ...
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1answer
37 views

code to activate Eth amount from Ropsten network to Main network

I have 2 issues with my Ethereum at Metamask. I received 1 Eth from someone in Africa, sent to Metamask, but he sent to Ropsten network, not to Main network. He asked me to send Dagcoins first and ...
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1answer
32 views

Understanding different network for ether transactions

I have just started learning about ethereum and trying to toy around different use-cases. I tried sending an ethereum to my wallet using ropsten ethereum faucet. Now, my understanding is this is some ...
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19 views

Problem connecting a deployed smart contract to JavaScript. Remix + JS + Infura + Ropsten (with Metamask)

I am a beginner in DApps and still learning most concepts. Recently, I wrote a smart contract in Remix IDE which I deployed in the ropsten test network using injected web3 and metamask. The functions ...
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1answer
669 views

Invalid BigNumber Value Uniswap and Ethers JS

Hey guys I am using the Uniswap Javascript SDK and Ethers JS to make a swap but I am getting this Error: invalid BigNumber value (argument="value", value=[-626648004,3158], code=...
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2answers
504 views

Someone can help to verify smart contract on Etherscan?

Here is source code of this smart contract ! http://dweb.link/ipfs/QmNxz54r9DfNqqgm9h7oJp52QgTPesbnGQ4PpppkSBjwH8 Complier version : 0.5.16 What I tried: Deployed successfully but can not verify on ...
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1answer
93 views

Is ABI necessary for calling ropstend smart contract?

I only have ropsten's smart contract address, so I'm trying to get it through web3.js with: window.web3.eth.Contract(abi, address) but i see in the documentation it receives two parameters, i don't ...
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1answer
18 views

Unable to synchronize with Ropsten testnet with Geth 1.9.25

For the past two days I've been trying to synchronize with Ropsten testnet using the following command in Geth 1.9.25: ./geth --ropsten --rpc --rpcaddr="0.0.0.0" --rpcapi="eth, web3, ...
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42 views

Trying to sync the ropsten testnet to local server using geth

I tried syncing the ropsten ethereum testnet to my local server using the following script: nohup geth --testnet --bootnodes "enode://...
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1answer
32 views

Connect local frontend with smart contract on ropsten

I'm new to DApp programming an I'm struggling with this problem since two days now. Cloned this github example: https://github.com/dappuniversity/election I deployed the smart contract to ropsten with ...
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16 views

How many miners are working on Ropsten (or other testnets)?

I'm curious how many miners or nodes are there on an Ethereum testnet. Is there any website which records such statistic or any method to estimate?
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1answer
77 views

Execution Reverted Details

I am writing code in Java and trying to calculated potential gas units, for a function call on my methods. I am trying to do so by using infura as a provider for my web3 Instance, and then created a ...
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1answer
70 views

Error while deploying contract to the Ropsten testnet

I'm trying to deploy a contract (called "FilesDetailsManager") to the Ropsten Testnet using Truffle and Infura as provider. But when I type into terminal truffle migrate --network ropsten, I ...
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1answer
1k views

Deployment Failed : “Migrations” — only replay-protected (EIP-155) transactions allowed over RPC

I am trying to migrate the code which is already tested in mainnet to ropsten network. I wonder why it is throwing the below strange error. We as a team unable to find a solution for this for past 2 ...
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1answer
131 views

Got error!!Trying to deploy smart-contracts in ropsten infura

When I am trying to migrate smart contracts in ropsten infura network, but got error. The error is shown below: Using network 'ropsten'. Running migration: 1_initial_migration.js Replacing Migrations....
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1answer
125 views

TypeError [ERR_INVALID_ARG_TYPE] web3.js error

Can anyone help me fix this problem? I keep getting 'throw new ERR_INVALID_ARG_TYPE( ^ TypeError [ERR_INVALID_ARG_TYPE]: The first argument must be one of type string, Buffer, ArrayBuffer, Array, or ...
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1answer
126 views

“txHash: undefined” error using web3.js

Can anyone help me fix this problem? I get 'txHash: undefined' error in terminal var Tx = require('ethereumjs-tx').Transaction const Web3 = require('web3') const web3 = new Web3('https://ropsten....
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87 views

Invalid implicit conversion from rational_const 5 / 2 to uint256 requested

I have the following code snippet inside my contract: plans[1100] = Plan(7, 3); plans[1101] = Plan(7, 2.5); plans[1102] = Plan(15, 4); plans[1103] = Plan(30, 6); plans[1104] = Plan(30, 5); When I try ...
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50 views

How to get rid of “Gas estimation errored with the following message” in this case?

In my front-end, I try to call a function called endAuction. In endAuction, I transfer payment to a seller and participants. While calling it from the front-end the transaction fails without any ...
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1answer
28 views

ROPSTEN: Duplicate Blocks adding transactions using Geth Real-Time Event API

I'm using the Geth Real-Time Event to get the new blocks via web-socket and there's a subscription called "newHeads" for that propose. The thing is sometimes the socket returns a duplicate ...
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2answers
360 views

Seamless process to obtain test ether from faucet? [duplicate]

I am unable to successfully "Buy" Ether from a faucet for Ropsten or from Kovan. Is it me or do most people have issues setting up a testnet using Ropsten and/or Kovan? Can anyone help me ...
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0answers
52 views

Trying to work with ganche-cli, truffle and infura

When trying to migrate a truffle-config.js file following error appears. TypeError: Cannot read property 'fromMasterSeed' of undefined any help would be much appreciated. const HDWalletProvider = ...
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132 views

Transactions not getting mined (Web3.js)

I'm trying to make a simple ether transaction with web3.js. Most times I try to execute the transaction, I get the following error: Error: Transaction was not mined within 750 seconds, please make ...

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