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 continiun play at ethernaut/capturetheether.com/devivul after the rinkeby/ropsten dead?

do you know how to continiun play at ethernaut/capturetheether.com/devivul after the rinkeby/ropsten dead? Will it dead permanent or every CTF should redeploy it at goerli? Or better to fork it and ...
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Functions working in remix but not in testnet

The functions remainingToken() and totalContribution() are not working in testnet but working in remix. function remainingToken() public view ownable returns (uint remainingSupply) { return ...
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Auto claim testnet eth from Faucet

It is possible to Automatically claim Testnet Ethereum from a faucet. If it is possible how can I claim that?
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0x swap quote gives "gas estimation failed error" on ropsten testnet even though I have enough funds

I'm using 0x swap quote api to convert my WETH -> UNI token. 0x swap quote gives "gas estimation failed error" on ropsten testnet even though I have enough funds. The 0x swap price gives ...
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How to test websocket feature on 0x-api protocol?

everyone. I'm interesting in the 0x-api protocol and I would like to use this in our project. But if possible I would like you to help me. How can I test the websocket feature of this protocol? Does ...
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ProviderError: Could not connect to your Ethereum client with the following parameters

I am trying to follow up with this online tutorial but using Ropsten (Ethereum) instead of Fuji (AVAX). Everything went well until I reached this part of truffle migrate --network development. Here is ...
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Invalid Sender using Ropsten

w3 = Web3(Web3.HTTPProvider('https://speedy-nodes-nyc.moralis.io/id/eth/ropsten')) tx_params = {'chainId': 3, 'data': b'', 'gas': 21000, 'maxFeePerGas': '0x47868c00', '...
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insufficient funds for gas * price + value in ropsten network with web3j (java)

I have a wallet in metamask in ropsten test network, and I try to send a transaction to another wallet in metamask ropsten network, using Web3j library with java. First, I build a httpServer with ...
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Camaron (v1.10.19) on ropstent testnet

I'm using geth version Sharblu (v1.10.18) on Ropsten testnet (POS) with consensus client, but now i need update geth to version Camaron (v1.10.19) Can i run geth lastest version Camaron (v1.10.19) on ...
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Why my contract deployed twice when i use HDWalletProvider?

this is my first question at StackOverflow Im not good at english so if you find some err on my posting, you can point out it too!😀 today i try to deploy my ERC-20Contract at ropsten network by using ...
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Gas limit error on Ropsten

Is anyone experiencing gas limit/gas estimation errors while deploying to Ropsten? Its faucet is not working now too.
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Building real applications on ropsten?

Hi guys I am still quite new in web3. So there is this client that require us to store some hash of their documents on Ethereum blockchain for tamper-proof verification purpose. So that we can also ...
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Anyone know whats going on with ropsten right now?

There seems to be 1 address (0xd197E7D3A499eaA555abf4B7F8899751f2b69505) mining tons of blocks. Also I cannot get a transaction through almost at all. If you look at the history theres period where ...
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1 answer
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Ropsten Ethereum Coins

I was sent more than $16000 of Testnet Ropsten Ethereum in a Coinbase wallet app. Then was asked to pay $1500 to activate it, so I can cash it to my own bank account. This is a scam, right?
2 votes
1 answer
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Which Ethereum testnet will be supported after the merge (Paris/Bellatrix)?

The Ethereum execution layer (EVM) will be merged with the Ethereum consensus layer (beacon chain) in an event, called "The Merge." The code name for the merge will be Paris hardfork on the ...
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DYDX SoloMargin contract address on Ropsten testnet?

Does anyone know the address of SoloMargin contract on the Ropsten testnet?
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Incompatible EIP155-based V 43 and chain id 3

I am trying to mint my token using Ropsten testnet, but getting this error. I checked that the chainId is correct i.e. 3 and is passed in Transaction objects second parameter. First time I have tried ...
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How to deploy smart contract using truffle and ropsten with Metamask account

I have this error when i use :"truffle migrate --network ropsten" This is my truffle-config.js: What I want to do is deploy my smart contracts using the same account (address) that I ...
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Nothing happens when I call web3.eth.sendTransaction

I am very new to web3, I am trying to use metamask with alchemy web3 wrapper. Metamask is connected and I can get account address and account balance but when I try "transaction" function, ...
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When trying to deploy a smart contract, I keep getting `Error HH100: Network ropsten doesn't exist` -- how do I resolve?

I'm running through these docs on deploying an NFT and I keep getting the error: Error HH100: Network ropsten doesn't exist The command I'm using can be found at step 16: npx hardhat --network ropsten ...
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Cant add liquidity in uniswapv2router

Im trying to add liquidity on ropsten to my uniswap pair. I get to the point where I need to send eth for addLiquidityETH(). I put 1 eth amount. Im using this contract and calling the addLiquidityETH ...
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How do I transfer any ERC20 token using Web3.js?

How can I transfer my custom made erc20 token using Web3.js?
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Trouble with testnet rpc urls

I did my homework not so long ago, and when i went to settings/networks, ropsten had testnet rpc url looking like https://ropsten.infura.io/v3/somethingelse, but now it's just https://ropsten.infura....
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1 answer
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Error: insufficient funds for intrinsic transaction cost on Ropsten

I've seen the question asked a bunch, I don't see any answers. I am working through this Alchemy tutorial to deploy a smart contract. This error pops up, even though I have 4.9 ETH in my Ropsten ...
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1 answer
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Ethers npm metamask differentiate ropsten and mainnet

In ethers npm I want to only allow payments If the users in on the metamask Eth mainnet and not ropsten So after they make a payment I can logged it in the database As paid, But I don’t want to log it ...
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1 answer
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Using test accounts on testnets

I am trying to better understand how testing with test accounts should work. I have my contract and app working locally. I've setup truffle to now connect to ropsten network (via Infura). In that ...
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Why ropsten has unpredictable block time?

I am currently learning ethereum testnets and I read that "Ropsten is the only proof-of-work testnet. It has unpredictable block times and frequent chain reorganizations" Why ropsten has ...
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Is it possible to test minting on a ropsten contract without creating a contracT?

I have a new minting bot that works on all networks and was trying to test it out before I risk losing real eth. I was wondering if there was a place I could go to find a predeployed contract with ...
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369 views

How to send signed transaction in ropsten testnet

I`m trying to send a signed transaction using web3js, but the result of the transaction hash is undefined Cannot understand why so... My code: var Tx = require("ethereumjs-tx").Transaction ...
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1 answer
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RuntimeError: abort(ReferenceError: proccess is not defined)

I am following this instructions https://hardhat.org/tutorial/deploying-to-a-live-network.html When I run the following command (last step of the instructions) npx hardhat run scripts/deploy.js --...
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1 answer
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Unstable Ropsten transaction

I've been developing on top of Ropsten for a few days. The network becomes unbearably slow and has been causing network timeout very frequently. This problem is especially prominent during afternoons ...
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1 vote
1 answer
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Event not firing - Alchemy Polygon Mumbai API difference to Alchemy Eth Ropsten API?

I have a simple smart contract deployed via Hardhat to both Eth Ropsten and Polygon Mumbai testnets. It contains a function that my app calls, and the function fires an event as below. event ...
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3 votes
2 answers
8k views

This transaction is expected to fail. Trying to execute it is expected to be expensive but fail, and is not recommended

Metamask is giving me that error. I am on ropsten network, I never had this issue before and I have enough funds: I have tried multiple times still getting same error. While it says "I will try ...
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How to fix a pending transaction

I'm using Blockcert to generate transactions. Transaction fees are set using the default price (25.000) but, for no reasons, my transaction and my account is in "pending" and I'm not able to ...
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Transfer Function Doesn't Pass Funds Onto Receiving Address

When transferring Ether using the transfer function in Solidity, the funds are sent out of the sending address and are received by the contract address, as expected. However, instead of being passed ...
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Sent money on metamask but never went through

I sent money on metamask with the Ropsten Network to my eth wallet on exodus. I never recieved it on exodus but on metamask it shows that it has completed. What do I do please help I'm new to this.
1 vote
1 answer
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Why am I getting "Too Many Requests" / "[ethjs-query] while formatting outputs from RPC" error from faucet.metamask.io

I am simply trying to get some test ether on Ropsten network from https://faucet.metamask.io/ and I keep getting this error. Any suggestion: Error: 500 {"error":"[ethjs-query] while ...
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1 vote
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"could not deploy due to insufficient funds", but still I have 0.000052197965366494 Ether. How could I solve this error?

Error: *** Deployment Failed *** "" could not deploy due to insufficient funds * Account: 0xDBC7A8105d32E4d6a80De11A94b0583047A7dbA5 * Balance: 52197965366494 wei * Message: ...
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Problem with ICO smart contract on Ropsten

I hope you are all well. I have a problem with an ICO smart contract. I have deployed this smart contract on ropsten and when I send ethers to the smart contract I get an error message which says “out ...
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1 answer
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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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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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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 ...
6 votes
3 answers
1k 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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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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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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2 answers
70 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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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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1 answer
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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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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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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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