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Questions tagged [sepolia]

Use this tag to identify issues with the Sepolia test network.

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The deployed contract bytecode does not match the compiled bytecode

first some context, I am building a Go-Ethereum tool that can compile, deploy, verify and finally run some functions on the deployed contract on Sepolia. It works fine with the exception of the ...
pigfox's user avatar
  • 71
2 votes
0 answers
17 views

Node synchronization stopped

I'm trying to deploy the Sepolia RPС node, as if everything was fine, but the synchronization stopped. Besu version 24.3.3 Configuration: Network: Sepolia Network Id: 11155111 Data storage: Bonsai ...
Pavlo Tsisar's user avatar
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0 answers
13 views

sepolia faucet needed for my master thesis [duplicate]

anyone be kind to help me with 1 sepolia faucet for me finishing my master thesis project? thank you a lot account: 0x6D10c5e67aDe3bc4ADDAeF07305f4EB8F33F026B
X Wang's user avatar
  • 1
0 votes
1 answer
24 views

ABI and BIN Files generated by solc and Etherscan verified code are not identical

I have a file that is composed of multiple imports, too much code to drop here so I will illustrate my question with a very simplified example. My compilers: $ abigen --version abigen version 1.11.7-...
pigfox's user avatar
  • 71
0 votes
0 answers
14 views

'Error :project ID request rate exceeded' on deploying contracts to Sepolia Test Network using command truffle migrate --reset --network sepolia

I have Ethereum Blockchain application(DAPP) using truffle framework with React as Frontend I want to deploy my contracts to sepolia test network so I run truffle migrate --reset --network sepolia ...
jisa_anu's user avatar
0 votes
1 answer
39 views

Invalid API key sepolia network blockscout

I deployed a contract on sepolia network and I would like to verify my coin using hardhat. npx hardhat verify --network sepolia 0x44ED9AB9F4Ab72e4b1aBfEBaDf5A942617B90D18 I created an API key on ...
SolidityNewbie's user avatar
1 vote
1 answer
87 views

Insufficient Liquidity after adding liquidity on Sepolia Uniswap V2

I created a token "TestMe" with 2 million tokens (18dec), minting the deployer address the whole stack. I used the "addLiquidityETH" function provided by uniswap router to add 500k ...
SolidityNewbie's user avatar
1 vote
1 answer
29 views

Gas estimation error when interacting with smart contract

I wrote a simple smart contract for bulk sending eth to multiple addresses on Remix pragma solidity ^0.4.21; contract PayMultiple { function pay(address[] payees, uint values) public payable{ ...
duyanhhz's user avatar
0 votes
1 answer
30 views

Contract creation confusion -- Unsure when my contract was deployed

I deployed a contract on Fuji Testnet around 3 hours ago, the address is as follows: 0xDb3F493F9D4CdaaDA08E30957c59a0e01CfB2af0 I went to Snowtrace to check it out and received an expected record of ...
Sophie Lee's user avatar
0 votes
1 answer
40 views

error staging test on sepolia testnet(1) Uncaught error outside test suite)

I'm trying to deploy a smart contract on the sepolia testnet ,so the contract is deployed successfully as seen on the etherscan ,but when im trying to test the contract with staging test by running ...
Divyanshu Madhav's user avatar
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0 answers
20 views

Trouble publishing contract source code in Brownie: ConnectionError 403

I'm encountering an issue while attempting to deploy a contract using Brownie and publish its source code to Etherscan. The deployment itself is successful, but I'm unable to publish the contract ...
Aria's user avatar
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0 votes
1 answer
30 views

Why wagmi with react returns object with numeric keys when fetch data from contract?

I have the issue that when I use useReadContract with abi , address an function name i receive the data like this: [{result: {0: value, 1: value}}]. The question is why this is possible when I have ...
blockchainer's user avatar
1 vote
1 answer
196 views

Full node on sepolia

I want to start testing my smart contract on an ethereum 2.0 testnet. I know there are different node providers like alchemy or quicknode but using these services I can incurr in rate limiting. The ...
ayman's user avatar
  • 15
0 votes
1 answer
50 views

Capture emitted event with web3 v4.7.0

I built a guessing game using an web3 v1.3.0 and it worked great, then I found out that version was deprecated so I upgraded to v4.7.0. The new code is expected to listen for an event: event ...
pigfox's user avatar
  • 71
1 vote
1 answer
80 views

Execution Reverted due to UniswapV2-Pair creation in constructor

I am new to Blockchain development, so bear with me. I successfully deployed my first contract, but if I try to add a Uniswap V2 Pair creation inside the constructor, I always get the error "...
SolidityNewbie's user avatar
0 votes
1 answer
33 views

Connected to a proxy function but getting an error when I call the transfer function of the implementation contract

I'm currently working on a project where I can transfer USDC from my account to another directly, provided I have my provider and private key, programmatic. So I connected to a proxy contract on the ...
Eyang Daniel's user avatar
0 votes
2 answers
65 views

UniSwapV2 Testnet Support

As you may be aware, the Goerli Testnet has been deprecated, and furthermore, UniSwapV2 is not supported on the Sepolia Testnet. What would be the recommended solution? Thank you in advance.
rebwar's user avatar
  • 3
0 votes
0 answers
64 views

Error: could not decode result data (value="0x", info={ "method": "retrive", "signature": "retrive()" }, code=BAD_DATA, version=6.11.1)

const fs = require("fs-extra") const ethers = require("ethers") const { JsonRpcProvider } = require("ethers") require("dotenv").config() async function main() {...
Muhammad Arif zafary's user avatar
0 votes
1 answer
54 views

What is the different between transaction fee and gas price?

I deployed a smart contract to sepolia network https://sepolia.etherscan.io/tx/0x8b309fd585d6f0196dddc5754038e06ef9693f4fd852ec27b02c320a1bc725f5 From the dashboard there are two price, Transaction ...
Joey Yi Zhao's user avatar
0 votes
1 answer
124 views

Sepolia Smart Contract - Withdrawal function

I've deployed a simple wallet solidity smart contract on the sepolia test network, and trying to test withdrawals. The first two attempts succeeded but I run into an 'insufficient funds' error despite ...
itsSlumpHoe's user avatar
0 votes
1 answer
35 views

Execution reverted - transaction mined but execution failed

I have looked at previous answers for this title but they don't seem to help me. My contract contract is deployed and verified on the Sepolia test net using Remix. This is the failed transaction The ...
pigfox's user avatar
  • 71
0 votes
0 answers
45 views

Doubt in uniswap v3 swap

swap doesn't working . Is there any mistake in my code ? I am using Ethereum sepolia test net. // SPDX-License-Identifier: GPL-2.0-or-later pragma solidity ^0.8.20; pragma abicoder v2; import "...
unni krishnan's user avatar
0 votes
1 answer
20 views

Why is the gas fee shown on Ether scan is different than the transaction I sent?

I sent a transaction to Ethereum test network sepolia as below code: const transaction = { from: account.address, to: contractAddress, gas: 202419, ...
Joey Yi Zhao's user avatar
0 votes
1 answer
75 views

Error when attempting to send SepoliaETH between two accounts in remix via smart contract with specific conditions: Cause of error -->undefined gas

I would like to use my smart contract to map a payment transaction from SepoliaETH from one Metamask account to another Metamask account. The conditions of a transaction limit and a recall function of ...
Dan Schönitz's user avatar
0 votes
0 answers
73 views

Transaction Error: Uniswap RouterV2 Sepolia Testnet

Im trying to swap WETH -> USDC in the Sepolia Testnet using Uniswap Router02 contract. Firstly I minted 0.5 ETH from the Faucet then created a Python script that uses Brownie (had to add the ...
Javier C Salaverri's user avatar
0 votes
1 answer
53 views

ZkSync Sepolia support?

we are currently developing a solution to tokenize billions of dollar of real world asset on ZkSync Era and we need add support for multi-signature scheme. I can see here that there is support for ...
dymayday's user avatar
1 vote
1 answer
73 views

Sepolia - stalled on waitForDeployment

I use Hardhat and have some scripts to perform functions, such as deploy. I've been using Goerli but have been aware that it is being shuttered, and also i've found the transaction fee to be high and ...
HankCa's user avatar
  • 175
1 vote
1 answer
29 views

How does the Sepolia Test Network work?

How do Test Nets like Sepolia stay in operation? According to chat GPT hosting a node has no token or financial award so why do people do it? In that case how are people supplying free faucets if ...
AlwaysCodedFresh's user avatar
0 votes
1 answer
12 views

gas error on semaphore deployment

I'm using semaphore deployment doc for its's deployment and I have error for gas usage, but I checked everything and it's ok. also, it works with no problem in hardhat node. command: yarn deploy --...
sarem eskandary's user avatar
1 vote
0 answers
26 views

SafeProxy contract is not deployed on the current network

I am trying to send ETH from my safe wallet. Safe address : 0x159bD467fafcfA348D2b5f357b23aA1d70E814A0 .proposeTransaction({ safeAddress: checksumSafeAddresss, safeTransactionData: safeTransaction....
ABDUL 's user avatar
  • 11
2 votes
0 answers
72 views

Is something happening with Ethereum Sepolia (or Etherscan Sepolia)?

I have came across several strange behaviours in the past couple of days with Ethereum Sepolia: While using Web3J in an application of mine, transactions are only processed in batches after a couple ...
PensoGlide's user avatar
0 votes
3 answers
801 views

Where to get various ERC20 token for Goerli and sepolia testnets

I'm trying to get a collection of erc20 tokens (weth, usdc, dai, wbtc) in a testnet either sepolia or goerli
codekoriko's user avatar
0 votes
1 answer
311 views

Etherscan Sepolia invalid API key

After yesterdays maintenance window I started to see Invalid API Key errors returned from the Etherscan Sepolia API endpoint. This API key I'm using was working before yesterdays maintenance, and any ...
gr347wh173n0r7h's user avatar
1 vote
1 answer
110 views

Error when using hardhat but changes made successfully onto smart contract, was able to see changes on etherscan

const [signer] = await ethers.getSigners(); const contractAddress = 'address...'; const contractABI = ["abi..."]; const existingContract = new ethers.Contract(contractAddress, contractABI,...
kzb's user avatar
  • 21
0 votes
2 answers
51 views

MethodUnavailable(error) when shifting from Ganache to Sepolia Testnet

I previously used Ganche to deploy a solidity contract in python with web3py and it worked with given http provider & account details. But now I want to deploy the flask application that connects ...
Anushka.N12's user avatar
0 votes
0 answers
103 views

ResponseError: Returned error: err: insufficient funds for gas * price + value

=====USING=== Sepolia Testnet, metamask, web3js and walletConnectModel =====ERROR=== sendSignedTransaction error: ResponseError: Returned error: err: insufficient funds for gas * price + value: ...
Rommer 's user avatar
0 votes
1 answer
531 views

"ProviderError: execution reverted" I get this error when trying to deploy to Sepolia

I need a bit of help with my code here. Maybe someone more experienced can eye the bug, I've have to give up and ask here. So, I am trying to deploy to Sepolia and I am getting this error and I've ...
mhanga's user avatar
  • 1
0 votes
2 answers
489 views

Invalid basescan api key when attempting to verify NFT smart contract via foundry

I've successfully verified contracts on etherscan before, but this time I'm following the "Deploy with Foundry" guide on the Base docs: https://docs.base.org/guides/deploy-with-foundry/ I've ...
thatguyintech's user avatar
0 votes
1 answer
417 views

HOW TO SET UP TRUFFLE CONFIGURATIONS FOR SEPOLIA ETH

** HOW TO SET UP TRUFFLE CONFIGURATIONS FOR SEPOLIA ETH ** I want to know how to set up my config on truffle to be able to deploy my contract on the eth testnet, I already have an infura api key
Emkiddo Skits's user avatar
0 votes
2 answers
3k views

USDT on Sepolia

I'm currently working on testing ERC-20 transactions on the Sepolia testnet and I'm looking to obtain some USDT for this purpose. Could anyone guide me on how to acquire USDT on Sepolia? I've been ...
Somaye Ebrahimi's user avatar
0 votes
0 answers
73 views

Need Help Deploying Contract to Sepolia

I've built a web3 dapp for the "Rock, paper, scissors, lizard and spock" game. I've made it run on my local system using truffle and ganache but I must deploy it on an Ethereum test like ...
Priyadarsh S S's user avatar
2 votes
1 answer
61 views

Issue with Smart Contract Interaction using Web3.js 4.2.0: TransactionRevertedWithoutReasonError on MetaMask and Sepolia Testnet

Problem Overview I am facing an issue while interacting with a smart contract using Web3.js version 4.2.0. The specific method causing trouble is broadcastMessage(string), designed to store a string ...
Dawid's user avatar
  • 141
0 votes
1 answer
101 views

HardhatError: HH101: Hardhat was set to use chain id 11155111, but connected to a chain with id 1

//hardhat.config.js require("@nomicfoundation/hardhat-toolbox") require("dotenv").config() /** @type import('hardhat/config').HardhatUserConfig */ const SEPOLIA_RPC_URL = process....
Bobby William Major's user avatar
0 votes
0 answers
36 views

Truffle migration error Network up to date

module.exports = { networks: { sepolia: { provider: () => new HDWalletProvider({ mnemonic: { phrase: MNEMONIC }, privateKeys: private_keys, ...
efe's user avatar
  • 1
0 votes
1 answer
64 views

Deployment Issues with BasicNFT on Sepolia Network Using Foundry: Mismatched Bytecode and Successful Deployment

While deploying a smart contract using Foundry on the Sepolia test network, I'm encountering an issue. The deployment seems successful, but I'm facing a challenge verifying the contract's bytecode. ...
Aryan's user avatar
  • 1
1 vote
0 answers
106 views

How to use the uniswap subgraph to search the pools of a token that you are deploying to the sepolia testnet?

How to use the uniswap subgraph to search the pools of a token that you are deploying to the sepolia testnet? I have already tried with both including georli but it always returns an empty array. url: ...
Marcelo's user avatar
  • 11
0 votes
0 answers
416 views

Erc20 Token on Uniswap , sepolia testnet

I'm trying to create Erc20 tradable tokens on Uniswap but I don't quite understand the full mechanism. 1.I created the erc20 token on sepolia test Eth network. I created the pool on uniswap and added ...
John's user avatar
  • 1
1 vote
0 answers
148 views

How to I solve fetch has been blocked by CORS policy when fetch data from contract

I'm trying to fetch campaign data and display it to the user. I'm using Nextjs in the front-end and solidity & hardhat in the back-end. The contract data seems to be fetched but when being ...
Kihiu's user avatar
  • 11
0 votes
3 answers
74 views

Chainlink VRF Contract Logic Error

I am beginning my journey in web3 so please be understanding 🙂 I am struggling to find an issue in my contract that uses VRF. It is a simple coinflip written in Vyper. I have deployed a consumer and ...
szaleju's user avatar
0 votes
0 answers
186 views

Does anyone know what uniswapRouterAddress and uniswap abi is on Sepolia network?

I am working on react native project, using v6 of ethers.js and infuria as my node. I initiate the contract like this: const uniswapRouterAddress = '0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45'; ...
Scott's user avatar
  • 15