Questions tagged [ropsten]

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

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195 views

error deploying token to ropsten using remix

I am trying to deploy my token on Ropsten Network using REMIX IDE, but keep getting this error "contract may be abstract, not implement an abstract parent's methods completely or not invoke an ...
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1answer
606 views

ETH not showing up

To help me get started learning how to create contracts, I had 1 ETH sent from the Ropsten Ethereum Faucet to my MetaMask address. It arrived fine, but when I tried to send it to MyCrypto address it ...
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1answer
2k views

Transactions stuck at pending on ropsten test net from one day

I am Writing a simple script for ERC20 token transfer method. which sign transaction offline and then submit it to network. Transfer method encoded data : var encoded = await MyContract.methods ...
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1answer
845 views

How to re-compile contracts using truffle which are updated?

I deployed something in the test-net(ropsten). Later, realized that one of my contracts needs some amendments. In such cases how to compile specific contracts and deploy only that contract using ...
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1answer
357 views

Contract not showing the name and symbol

I deployed a contract on ropsten but it was not showing the name and the symbol. I have the feeling that there is something wrong at the deployment and I think it has to do with the parameters. As you ...
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1answer
614 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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0answers
38 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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1answer
2k 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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0answers
139 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
290 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
32 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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3answers
1k 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
257 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
109 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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0answers
889 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
670 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 ...
2
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1answer
369 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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2answers
204 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
59 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
89 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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0answers
130 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
49 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
10k 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
925 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
3k 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
584 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
36 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
23 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 ...
1
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1answer
32 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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0answers
51 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
36 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
1k 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
214 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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1answer
3k 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
702 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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0answers
624 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=...
2
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2answers
472 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
942 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
262 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
1k 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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2answers
7k 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.
1
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1answer
222 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 ...
0
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1answer
249 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
1k 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, ...
4
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2answers
10k 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
80 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,...
2
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1answer
480 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 ...
2
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1answer
779 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
911 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
149 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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