Questions tagged [sepolia]
Use this tag to identify issues with the Sepolia test network.
61
questions
0
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7
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 ...
- 1
1
vote
0
answers
20
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 ...
- 11
0
votes
3
answers
56
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 ...
- 3
0
votes
0
answers
23
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';
...
- 5
0
votes
1
answer
118
views
Uniswap - swap between Sepolia and my own erc-20 token
I am working on a React-Native crypto application for fun, and I am trying to swap my Sepolia native token with my erc-20 token that I recently deployed on remix ide on the sepolia network using ...
- 5
0
votes
1
answer
50
views
Error while deploying on sepolia network
hardhat.config.js ->
require("@nomicfoundation/hardhat-toolbox");
require("@nomicfoundation/hardhat-ethers");
require("dotenv").config();
console.log("1");
...
- 9
0
votes
1
answer
19
views
Why won't my the png associated with the my ERC721 token appear on https://sepolia.etherscan.io/
I am successfully minting tokens in that they appear on https://sepolia.etherscan.io/. However, the information that I provide for the TokenURI is not appearing.
Here is the link to the IFPS JSON that ...
- 131
0
votes
1
answer
61
views
Display token balance of test tokens
I am working on a React-Native crypto application for fun, and I am trying to show the test tokens that I have inside my metamask wallet to display on my app to display the token balances.
I have ...
- 5
1
vote
1
answer
63
views
Unable to create Arbitrum Sepolia Token
I want to create an Arbitrum Sepolia token.
I tried to create Arbitrum Goerli token but everyone says Goerli is depricated.
Also, I was unable to faucet to goerli because they want 0.1 ETH on the ...
- 155
1
vote
0
answers
16
views
Why would a slot have 0% participation from sync committee (Sepolia)?
I'm working on a service that listens to blocks from the Ethereum Beacon chain (both mainnet and Sepolia), and uses the sync committee for submitting proofs of transactions to a light client.
I ...
- 183
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votes
0
answers
32
views
Why is Web3.js estimating 0 GWEI for gas price on Sepolia?
For some reason Web3.js cannot estimate gas correctly on Sepolia
I have pulled in the Web3.js library via CDN
<script src="https://cdn.jsdelivr.net/npm/[email protected]/web3.min.js">&...
- 818
0
votes
1
answer
42
views
Calling approve function of an erc-20 contract not working
I'm dealing with a problem, I hope someone can help me.
token: 0x9216e1BbC58Ba2bD90c5b49524659209ccaB32Da
contract: 0x8ca112e2fdFF220217609D391eec0B95d5E505a2
alumne: ...
0
votes
1
answer
16
views
Hardhat deploy same contract to multiple addresses fails
I need to deploy the same contract to multiple wallets and I have this shell script.
#!/bin/bash
set -x
contractName=MyContract
network=sepolia
npm cache clean --force
yarn hardhat clean
yarn hardhat ...
- 125
0
votes
0
answers
8
views
Want to test Sending tokens from one chain to another using wormhole but on testnet
I am really not sure how to get started with this , we barely have tokens on testnet and most of them are created, using wormhole I want to be able to send tokens from one chain to another. Also if ...
0
votes
1
answer
54
views
ERC20 token transfer failed When getting called by a smart contract
I'm developing a smart contract in Remix, and it is compiling correctly, but every time I try to execute functions related to the transfer function from my token ERC-20, it returns me an error saying ...
0
votes
1
answer
92
views
Error: factory runner does not support sending transactions (operation="sendTransaction", code=UNSUPPORTED_OPERATION, version=6.7.1)
I have run into the above error trying to deploy my contract. Running npx hardhat scripts/deploy.js.
Here is the deploy.js:
async function main() {
const Test1 = await ethers.getContractFactory(&...
- 3
0
votes
0
answers
36
views
Running beacon node using prysm
I was running Running beacon node using prysm with the following command:
~/Documents/microverse/BlockChain\ and\ Web3/mynode/sepolia/consensus/prysm/prysm.sh beacon-chain --execution-endpoint=http://...
0
votes
1
answer
95
views
TypeError: Cannot read properties of undefined (reading 'match')
I'm new to Solidity and ether js. I'm stuck with error below in VSCode. Can anybody help explain what this error means and advise how to fix this? Thank you so much!
ERROR BELOW:
(node:5884) ...
- 11
0
votes
2
answers
239
views
Issues with deploying smart contract using Sepolia test net
I am having issues deploying my smart contract in hardhat using the sepolia test net. I keep getting the "Network sepolia doesnt exist" error as well as "Option moduleresolution must be ...
- 73
1
vote
0
answers
12
views
Demonstrating Immutability and Transparency in a Blockchain: Observing Data Retrieval Across Nodes
I have developed a decentralized application (DApp) on a blockchain platform and I'm keen on verifying the fundamental principles of immutability and transparency that blockchain technology offers. ...
0
votes
0
answers
67
views
Must be authenticated error using Alchemy RPC URL
I am getting this error
Error:
(code: -32000, message: Must be authenticated!, data: None)
When running this command
forge script script/DeploySimpleStorage.s.sol --rpc-url $SEPOLIA_RPC_URL --...
- 31
1
vote
0
answers
82
views
How do I solve error 'missing revert data in call exception'?
I'm trying to withdraw donations from a single campaign. When I click the withdraw button it loads then reverts with the error;
Error occurred while withdrawing funds Error:
╔═══════════════════╗
║ ...
- 71
0
votes
2
answers
346
views
Sepolia Testnet
I am using Sepolia testnet to work and develop my dapp. I created the contract and deployed to the Sepolia network. I will be making several transactions in this similar manner. I know it is possible ...
- 21
0
votes
0
answers
65
views
transfer Sepolia faucet using an API
I need an urgent solution.
I am working on a functionality that creates wallets for users and fund them with some sepolia faucet for a transaction- is there any api that I can use to transfer sepolia?
...
0
votes
0
answers
123
views
Sushiswap Router Contract Address on Sepolia Public Testnet?
I'm trying to interact with Sushiswap on the Sepolia public testnet, and I already found the Uniswap Router contract address. However, I can't seem to locate the Sushiswap Router contract address for ...
0
votes
0
answers
116
views
Error with Sepolia Faucet - ReCAPTCHA not Recognized Despite Correct Completion
I am facing an issue while using the Sepolia Faucet provided by Alchemy through sepoliafaucet.com. Every time I try to access the faucet and complete the ReCAPTCHA, I encounter the error message,
&...
0
votes
0
answers
169
views
Token Balances for sepolia testnet not updating in metamask
Token Balances for sepolia testnet not updating in metamask when sent from faucet (aave in this case). I can send test ether which works appropriately. I have added tke token contract address (see ...
0
votes
1
answer
555
views
How accurately does sepolia gas/transaction price correlate with ETH
I'm currently using Sepolia testnet while learning how to mint nft's through javascript, and wondering how accurate the gas price/transaction fee's are for when I switch to using real ETH.
I'm making ...
- 1
0
votes
0
answers
460
views
How do I add Sepolia Testnet to Trust wallet
I linked my Trust wallet to Chainlist to 'get access' to Sepolia Testnet. And I transferred some Sepolia ETH to the address, but it is yet to reflect in Trust, despite etherscan confirming this ...
0
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0
answers
55
views
abortHandshake(this, req, `Unexpected server response: ${res.statusCode}`);
truffle migrate --network sepolia
Compiling your contracts...
Everything is up to date, there is nothing to compile.
/mnt/c/pr0/bootcamp-completed/node_modules/ws/lib/websocket.js:542
abortHandshake(...
- 31
0
votes
2
answers
430
views
'err: insufficient funds for gas * price + value:
I am using sepolia testnet, to make a signed transaction between two accounts locally, below is the code :---
let { Transaction: Tx }= require('ethereumjs-tx');
let {Web3} = require('web3');
const ...
- 13
1
vote
1
answer
54
views
State variable not returning value when the contract is deployed into sepolia test network
The manager state variable captures the value of account that deploys the contract on the network. When deploying the contract on Ganache and calling ContractName.methods.manager().call(), it returns ...
- 21
0
votes
0
answers
285
views
How can I find Smart contract address deployed in sepolia testnet?
I'm finding contract address of SwapRouter and Quoter which is the contract of uniswap version 3.
Of course Goerli address is in uniswap doc. But I want to know the address in sepolia.
If anybody know ...
1
vote
2
answers
2k
views
what is the right way to read from the contract? using wagmi.sh
So I am using the package wagmi.sh and via that I am writing to a very simple contract called the counter program that increments the value by 1 each time I call the function. Now I am able to ...
1
vote
1
answer
354
views
How to access Sepolia from front-end
I have created a contract and want to now connect my front-end using Sepolia.
I cannot figure out the right way to connect to the host and start my Dapp. I am using Yarn to run the Dapp.
window....
- 525
0
votes
1
answer
97
views
Simple contract fails to deploy to Sepolia
I am trying to deploy a very simple contract to Sepolia.
Here is the code:
pragma solidity ^0.8.18;
contract Object {
bytes32 private UID;
bytes private Desc;
constructor(...
- 525
0
votes
0
answers
26
views
Test networks not working
I am using Hardhat, Alchemy and Goerli to test my SC. But for some reason NONE of my txns go through. They are all stuck in "Pending" within Alchemy. I have tried both Goerli and Sepolia ...
- 55
0
votes
2
answers
2k
views
UniswapV3 Swap Router Sepolia Address
Have been looking for UniswapV3's SwapRouter's deployed address on the Sepolia Test Network. For some reason the Unsiwap has't provided us with the Sepolia deployed addresses.
Can someone help me here....
1
vote
2
answers
85
views
Aave V3 Liquidations - Testing on Sepolia
I'm trying to test my nodejs app on the Sepolia testnet. What I want to do is monitor some events, gather user accounts, I will then call getUserAccountData() from the pool to see the HF. As explained ...
- 31
0
votes
0
answers
15
views
Request testnet ETH and LINK tokens for the Sepolia testnet [duplicate]
I am trying to get a sepolia test link from faucets.chain.link, I have inserted my wallet address, I have selected the Request type (0.1Eth), I have verified that i am human; But the send request ...
0
votes
0
answers
25
views
Contract not found despite deployment tx
I have a transaction using Metamask with Remix and got the following:
https://sepolia.etherscan.io/tx/0x912dfae59792362b3912074669318749e485360d3f3c174d5b4bff7013840018
This is my contract:
//SPDX-...
- 125
0
votes
0
answers
105
views
Sepolia Unauthorized URL
Good day, Ive constantly been getting errors while working with Sepolia Test Eth with Brownie, I've checked for errors in my .envfile as well as in my brownie-config and still havent seen a ny issues, ...
- 3
0
votes
1
answer
457
views
Getting error "Error in plugin @nomiclabs/hardhat-etherscan: The Etherscan API responded with a failure status." while trying to verify smart contract
I successfully deployed my smart contract on Sepolia Testnet. But while I'm trying to verify the contract through hardhat I am getting error. I looked for everywhere for the answer but couldn't find ...
0
votes
1
answer
152
views
TypeError: Cannot read properties of undefined (reading '11155111')
PS C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project> npx hardhat deploy --network sepolia
Nothing to compile
An unexpected error occurred:
Error: ERROR processing C:\Users\BISHOP\...
- 1
0
votes
1
answer
824
views
Loolong for tusdt faucet Sepolia [closed]
Found only one but it is not working . Can anyone please point out a working one. Thank you
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1
vote
0
answers
29
views
Can a single set of validator keys for staking be signed with multiple Ethereum accounts?
I am setting up solo staking on Sepolia with a local Nimbus client. I want to test a setup where my eth funds are spread out across two ledger devices.
Can I generate a single set of validator keys ...
- 13
0
votes
1
answer
841
views
How to get enough Sepolia eth to test staking?
The Sepolia faucets prescribed here dispense a limited amount of eth each day. However, in order to test solo staking, one needs a non-trivial amount of eth. What is the most efficient way to procure ...
- 13
0
votes
1
answer
636
views
Problem in getting test ethers from sepolia faucet by alchemy
I am getting error
"Sorry! To be fair to all developers, we only send 1 Sepolia ETH every 24 hours. Please try again after 24 hours from your original request."
on sepolia and mumbai faucets ...
1
vote
1
answer
37
views
Insufficient fund
require('dotenv').config();
require('@nomicfoundation/hardhat-toolbox');
const API_URL = process.env.API_URL;
const PRIVATE_KEY = process.env.PRIVATE_KEY;
const API_KEY=process.env.API_KEY
console....
- 23
1
vote
2
answers
947
views
How did I show NFT image on etherscan sepolia testnet
I can't view my NFT image on sepolia etherscan
This is tokenId 10 Metadata: ipfs://QmaGdnYmY4Pg5bNYmrrvYNfczxm8LnxkcBZsyCmH9t1VsL/0.json
Contract address:https://sepolia.etherscan.io/address/...
- 11