Questions tagged [ropsten]

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

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Requesting ropsten ETH / Not receiving rinkeby ETH

Ropsten address "0x28c2fdd94dda609ed825d5f5648568942fdb2e13" Rinkeby address "0xf5aa7ee414226b7dea69018b83e0bd162830ca85" If anyone can send me some test ETH I would greatly ...
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1answer
20 views

The send transactions “from” field must be defined using Infura web3

when I try to send my transaction using infura I get this error "The send transactions "from" field must be defined" My problem is my web3 object. When I used Metamask and ...
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24 views

Is possible to use a smart contract with custom buyTokens method in TestNet?

I'm trying to test a smartcontract in TestNet that is working in my private ethereum blockchain network. I can deploy it in Ropsten and Rinkeby, but I can not execute my buyTokens method from Remix. ...
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35 views

I am getting Error: Project ID is required deploying to ropsten in truffle

I am getting the following error: Error: PollingBlockTracker - encountered an error while attempting to update latest block: Error: project ID is required at C:\Users\myuser\Code Projects\sdfsd\...
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17 views

Geth transaction pending on Ropsten testnet that will not send

On a Raspbian linux system I have been using geth --testnet --syncmode light to sync the Blockchain in one terminal and running geth --testnet attach in the other, but when the Blockchain is synced I ...
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1answer
39 views

Ropsten Etherscan shows 0 holders for my token

I created ERC20 compliant token on Ropsten testnet. I set in constructor that all of the token supply is added to my wallet address. When I open the metamaks I see that I have the tokens. Here's the ...
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2answers
23 views

Deploying App on Ropsten or any Test Network

I have a web3.js application which uses truffle and interacts with smart contracts deployed on Ganache. How do I deploy my smart contract on a Test Network and interact with it through my application?
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11 views

Syncing Poblem With Parity Docker Container

I'm running a Parity node inside a docker container and i'm trying to sync it to the ropsten network. However after around 1300-1700/4257 snapshots synced I keep getting Encountered error during ...
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1answer
35 views

Number of state entries needed before geth node is synced up with Ropsten

I am currently syncing a Geth node with the Ropsten network. Currently the download in the terminal show a neverending stream of Imported new state entries. I understand that I have to wait for all of ...
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1answer
41 views

Error when sending multiple transactions

I'm having a weird issue with the code below in that sometimes it works and sometimes it doesn't. It seems more apparent when TRANSACTIONS is set to a larger number. I have had it fail AND pass with ...
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1answer
40 views

Call Result Returning Wrong from Proxy Contract [closed]

I published my proxy (AdminUpgradeabilityProxy) and logic contract to Ropsten Test network. But my call result is returning wrong value through the my proxy contract. For example I call to ...
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34 views

Could not transact with/call contract function, is contract deployed correctly and chain synced?

i got "web3.exceptions.BadFunctionCallOutput: Could not transact with/call contract function, is contract deployed correctly and chain synced? " error when try to run this code: from web3.auto.infura ...
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2answers
104 views

Truffle deployment error while deploying with Infura (Error: Callback was already called)

I am trying to deploy a token smart contract to Ropsten test network with Infura, but I am always getting an error as I am using truffle migrate --reset --network ropsten_infura Compiling your ...
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1answer
25 views

Does Gas Price Affect TX minng priority [ROPSTEN]

Since ether, on the ropsten network, virtually isn't worth anything does the gas price for transactions affect the priority in which they're mined? I'm asking because web3.eth.getGasPrice() (on the ...
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56 views

gas exceeds allowance

I'm testing my smart contract on ropsten and I have written an async function that lets me send TRANSACTION transactions from TRANSACTION different accounts. For some reason when TRANSACTION > 20 i ...
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1answer
47 views

What's going on with the Ropsten network

What is going on with the Ropseten testnet? The last block(7752138) was mined at 07:24:17 AM +UTC which was, at the time of writing this, 23minutes ago. https://ropsten.etherscan.io/block/7752138
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1answer
19 views

why does not shown the holders number and transfers of the custom ERC20 token in Ropsten? [closed]

I published an ERC 20 token on Ropsten. The token's total supply, name and symbol shows on the self page (https://ropsten.etherscan.io/token/..) but the holders number and transfers are not shown. The ...
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27 views

Testing response times using Ganache

If you want to simulate repsonse time of your smart contract, how realisitc is it to use ganache? I'm thinking that in a live network, ropsten for example, there would be a lot more transactions ...
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1answer
31 views

How to read blockheaders of Ethereum Blockchain?

TO be specific, how to read block headers of Rinkeby on Ropsten blockchain? Since both the blockchains are public test networks, reading data of one blockchain on another should be possible using ...
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2answers
1k views

gas required exceeds allowance (8000029) or always failing transaction

When executing this function, I get an error gas required exceeds allowance (8000029) or always failing transaction i know that this error have when use transferFrom function. Where i wrong? help me ...
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0answers
93 views

Metamask always show '0' for gas price and value

I tried to deploy and execute some transactions on multiple contracts but Metamask keeps showing 0 for the gas price and value field. I am on Ropsten test network. It is not specific to any contract, ...
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1answer
93 views

Should i move my erc20 token from ropsten to main network?

I have just created token in ROPSTEN network, so Im confused now... Can I use my tokens in main ether network (sel, give, etc) or I just van play with them in test network and forget...? Should i ...
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2answers
78 views

Setting a value for ERC20 token on private blockchain?

Background: Currently we have an Dapp running on Ropsten. We've created an ERC20 token on Ropsten. Our employees are awarded these tokens over time. We want to use Dappos to allow our employees to ...
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1answer
35 views

wallet of goods [closed]

I sell goods for tokens. And I would like to make a wallet of goods for each user. So that he sees the amount of each product that he bought. Can I realize this in solidity? For example: through ...
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2answers
20 views

pay for goods with tokens

I pay for goods with tokens. But after the first call to the function, tokens are not removed from the wallet. Please tell me why when I call the function for the first time, tokens are removed, but ...
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1answer
25 views

Problem with contracts being deployed multiple times in Node.JS backend

I have a Javascript frontend that passes records in a JSON to the backend via Express to be deployed to the blockchain (currently using Rinkeby) with truffle-hdwallet-provider. This appears to work ...
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42 views

Why can I only deploy approx. 3 smart contracts per minute with infura using Ropsten and Rinkeby

I have created a Dapp that is written in Solidity and compiled with Truffle on both Rinkeby and Ropsten. I have also created a frontend for batch file uploads and a backend for the actual deploying ...
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1answer
18 views

Testing Smart Contract with multiple clients

After deploying a smart contract on Ropsten Testnet using Truffle framework, we can use truffle tests to do unit testing (create a client to interact with the deployed contract). My question is, how ...
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1answer
155 views

“truffle migrate --network ropsten” stuck after compiling

I am trying to redeploy a contract on Ropsten Testnet using the command: truffle migrate --reset -f 1567182283 --network ropsten Here, "1567182283" is the prefix of my migration file. Upon executing,...
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1answer
35 views

Redeploy contract on Ropsten Network

I have already deployed my smart contract on Ropsten network for testing using truffle suite. The command line I used was: truffle deploy --network ropsten Now, I have made some changes to my ...
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28 views

Import error when publishing source on Etherscan

I am attempting to publish my source code on Etherscan. When I compile, I get the following error. I assume that this callback is not reaching the destination. myc:3:1: ParserError: Source "...
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1answer
292 views

How can I get USDT Test Token [closed]

Can Anyone guide me on how to get the tether(usdt) test token on ethereum in ropsten test network
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1answer
32 views

How to deploy more than one contract with Remix

I'm trying to deploy my contracts with Remix to Ropsten, but I don't know how to do it. Can you help me? (I have a ERC20 token contract, and a CrowdSale contract)
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128 views

How to connect to Etherscan Ropsten API using python

I want to connect to the etherscan Ropsten test-net with python: URL = 'https://api-ropsten.etherscan.io/api?module=contract&action=getsourcecode&address=...
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2answers
132 views

The method eth_sendTransaction does not exist/is not available, when using Ropsten Network

My following code previously works perfectly at Ganache, but when i switched it to Ropsten Network, it give captioned error. Here is Code: async function finalSettersFunctions(){ var myFunc; ...
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1answer
196 views

UnhandledPromiseRejectionWarning: Error: Returned error: nonce too low

I am trying to deploy some contracts on Ropsten network. Here is my code async function finalDeploy(r){ for(i=0; i<constructorParams.length; i++) { const options = { data: '0x' + ...
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1answer
105 views

Ropsten Blockchain Size on Disk December 2019?

Hello what is the size of the Ropsten Blockchain, on disk, using Parity with full trace on? (Info required to provision a VPS).
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1answer
147 views

How to create account using mnemonic words or private key in web3js and call contracts using that account

I have a simple React Project with web3@1.2.4 installed and I want to call a contract's method like this: await maincontract.methods.CurrentMethod("arguments").send({ from: accounts[0]/*my account ...
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30 views

Truffle to Ropsten Testnet Deployment Issue: No migration

I am trying to deploy my contract on Ropsten test network through Truffle Framework. I use the command truffle migrate --network ropsten. Following is my truffle-config.js: const HDWalletProvider = ...
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1answer
140 views

Why does Ropsten faucet show “Your account is grey listed for 0 hours and 0 minutes”?

I am requesting test ether from a Ropsten faucet, but it is showing an error. Please help me to resolve this error.
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1answer
58 views

Deploy smart contract on Ropsten, Kovan

When I deploy my truffle smart contract on test networks like Ropsten and Kovan, can I interact with it using multiple PCs at once simultaneously? And will the data updated from one PC be visible on ...
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1answer
76 views

NodeJS + Web3 + Infura Ropsten - Error: Invalid JSON RPC response: “”

I have problem with invalid response to ethereum from BE NodeJS app. I got error like: Error: Invalid JSON RPC response: "" Below I'd attached my simple code for testing connection. const Web3 = ...
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0answers
29 views

How to recieve notification of incoming transaction in metamask mobile in real time

I have a erc-20 token in the ropsten testnet and i am using my metamask for admin my token, and i just want to recieve a notification via sms, to take screenshot, whatsapp or another way frendly user, ...
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1answer
439 views

Error while buying test ether from https://faucet.metamask.io/ - Mastering Ethereum

I am using Ethereum wallet MetaMask chrome extension and I am connected to Ropsten test network. I am following the instructions from the book Mastering Ethereum: Building Smart Contracts and DApps ...
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2answers
29 views

Function does not return value on ropsten [duplicate]

This code returns the address perfectly when i run it on ganache local chain but when i run this on ropsten it just returns a "-" Any idea on what the problem is? function newMatch(uint _matchId,...
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1answer
159 views

Error trying to get events in web3.py via Infura

I was trying to get all events from my smart contract (in Ropsten) via Infura node. The problem is that I know that Infura does no support creating filters, but I don't know how to get events by ...
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1answer
111 views

Who confirms Ropsten and Rinkeby transactions?

Basic or more like "fundamental" question I guess: So if I got that right, each time someone runs Geth/Parity or other software they all become part of the EVM (ethereum virtual machine). However ...
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1answer
94 views

Problems calling function with web3 from python

I was trying to call a function from my python server to a contract deployed in Ropsten. This is my method in the contract: function send(address receiver, uint amount) public { require(msg....
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1answer
52 views

Error sending ether to a a smart contract deployed in ropsten with web3 with python

I am trying to send ether to a smart contract deployed on ropsten via infura, but I am having some problems in txn. The error is "Error in Txn: Reverted". The sender account has enought ...
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0answers
15 views

How can I find reliable Ropsten nodes for adding to my nodes whitelist?

After the recent hard-fork on Ropsten we follow the tip on peter_szilagyi tweet to add a peer whitelist. In case we want to add more nodes to our whitelist as in Connect to static nodes. where can I ...

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