Questions tagged [ropsten]

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

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39
votes
5answers
8k views

Ropsten testnet is under kind of attack? What can we do?

For the last approximately 24 hours, Ropsten testnet is under an attack in my opinion. The gas limit is raised to 200m and the attacker was proposing blocks with more than 4,000 internal txs ...
127
votes
2answers
51k views

Comparison of the different TestNets

The Metamask client allows access to four test networks: Ropsten Kovan Rinkeby Goerli I'm curious: What are the similarities / differences between them? Which use cases are best for each network ...
19
votes
1answer
16k views

Steps to deploy a contract using MetaMask and Truffle [closed]

i'm noob, I want to deploy my contract on Ropsten network with MetaMask & Truffle, plz explain to me the steps to deploy it.
36
votes
4answers
6k views

What is Olympic, Frontier, Morden, Homestead and Ropsten Ethereum blockchain?

I am studying Ethereum and have not been able to figure out the difference between Homestead and Morden. In some docs, it is written that Homestead uses a new algorithm which takes less time. I don't ...
9
votes
1answer
2k views

How to generate a vanity address for a smart contract to be deployed on?

I am aware of the possibility to generate vanity addresses for normal accounts. However, how is possible to generate vanity addresses for external owned accounts (which host smart contracts)? I'm ...
7
votes
2answers
4k views

How to switch from Morden to Ropsten?

I installed a v.0.8.7 client and tried switching to Ropsten, following these instructions. Namely, I typed in: dyn906-29:~ sam$ geth -- datadir /Users/sam/Library/Ethereum/testnet/geth/chaindata/ ...
2
votes
1answer
1k views

How to manually switch Mist to Ropsten?

I am new to Ethereum. I have the v.0.8.7 client. It is fully synchronized with the blockchain (see screenshot below: last block seen a minute ago). I am basing myself on this post. If I understood ...
10
votes
2answers
12k views

How to obtain all transaction of a contract?

I'm trying to obtain all the transactions of a contract, but in all cases I only obtained [] or undefined. I'm following this posts: Common useful JavaScript snippets for geth web3 filter option not ...
4
votes
1answer
2k views

The Ropsten bootnodes of the Eth Foundation are down, can anybody share any other?

Running geth in verbose 5 mode, I get this: TRACE[01-11|12:45:26] Dial task done task="discovery lookup" TRACE[01-11|12:45:26] Skipping dial candidate id=...
2
votes
3answers
1k views

Want to run a local fork of Ropsten

I would like to run a local fork of Ropsten to interact with some of the smart contracts without having to fill up from the tap. My plan was to start a light parity node as follows: parity --chain ...
18
votes
2answers
3k views

What prevents the market from assigning value to testnet ETH?

If enough people mine testnet ETH for testing purposes, difficulty will rise along with the cost of generating testnet coins. In some a circumstance why would the value of testnet coins not rise based ...
12
votes
1answer
781 views

parity Ropsten testnet forked at block 296151?

I am seeing what looks like a fork in the Ropsten testnet at block 296151 (Jan 6, 11:14 PM UTC). Is this expected? My local Parity node (Parity/v1.4.7-beta-f2058bd-20161227/x86_64-macos/rustc1.13.0) ...
4
votes
4answers
6k views

Are there ropsten ERC20 testnet tokens?

I am trying to write an application using web3.js and I want to integrate some ERC20 functionality. But rather than muddy up the mainnet, I'd like to try things on the Testnet first. I see that https:/...
3
votes
2answers
1k views

What economic incentive does anyone have to mine Ropsten and other networks?

Ethereum 1.0 has a basic limitation, as all global blockchains do: each block can only hold so many transactions. Due to this scarcity, every time even one application gets too popular on the main ...
3
votes
1answer
2k views

Bootstrapping Geth on Ropsten Testnet with Known Nodes

I tried syncing with the Ropsten testnet using Geth with the following command. geth --testnet --mine --minerthreads=1 When it looks from Geth like I'm synced, the block height is way behind what ...
2
votes
1answer
736 views

Cannot connect to any ethereum networks using API key

I followed a tutorial about how to connect web3 with ethereum networks. I registered in infura.io and get all the urls. But when I try to connect to any network it is not connecting.When I print web3 ...
0
votes
1answer
307 views

“txHash: undefined” error using web3.js

Can anyone help me fix this problem? I get 'txHash: undefined' error in terminal var Tx = require('ethereumjs-tx').Transaction const Web3 = require('web3') const web3 = new Web3('https://ropsten....
16
votes
2answers
12k views

Connecting to hosted web3 provider from NodeJS backend

I'm using these instructions from etherchain. Here's a similar question(seems like duplicate, but it's not). The solution provided there doesn't work for me, because I don't have a local ethereum ...
8
votes
3answers
3k views

How to send a lot of transactions to ethereum, using js

I'm trying to send a lot of transactions to Ethereum with one program written in js. I use node js, web3 and infura ropsten. The problem is: if i send transactions at once, most of them just disappear....
5
votes
1answer
752 views

What's the difference between Olympic, Morden and Ropsten?

Canonical question about the public Ethereum testnets. What's the difference between Olympic, Morden and Ropsten? What are their network IDs, which ones are still considered active?
5
votes
2answers
3k views

Geth v1.7.2 not connecting to peers on ropsten?

I'm using geth from Ethereum Wallet (as you can tell from the command path). $ '/home/myalias/.config/Ethereum Wallet/binaries/Geth/unpacked/geth' console --testnet --datadir=/home/rshi/.ropsten --...
1
vote
1answer
6k views

Create account via infura - ropsten network [duplicate]

I connected node with infura via web3js: var currentProviderr = new web3.providers.HttpProvider("https://ropsten.infura.io/..."); How to create accounts in infura? How to view them? web3.eth....
8
votes
4answers
1k views

Truffle: Migrate to ropsten - fails silently

When I run the following command I receive no output whatsoever: truffle migrate --network ropsten This is just after creating a new project using truffle init and creating a single contract. When ...
7
votes
1answer
866 views

ETH stolen on Ropsten

Has anyone encountered the following scenario on Ropsten: You create an account in Geth, and proceed to transfer some ETH to yourself via a faucet. You unlock the account and proceed to start ...
5
votes
2answers
4k views

Deploying contracts in Ropsten with Truffle

I have another n00b question... sorry about that :( I'm trying to deploy a smart contract to Ropsten. I have synched the Ropsten network with geth --testnet --fast --rpc --rpcapi eth,net,web3,...
4
votes
2answers
11k 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 ...
4
votes
1answer
1k views

What do the parameters in the Ropsten genesis file mean?

Here's a snippet of Geth's Ropsten genesis: "config": { "chainId": 3, "homesteadBlock":0, "eip150Block":0, "eip155Block":10, "eip158Block":10, "eip160Block":10 } ...
4
votes
1answer
1k views

Geth or Mist do not sync any more [duplicate]

I am new to ethereum but managed to successfully start Geth on 2 of my machines , and could also install MIST. Now, since several days, one of my machines does not sync with the testnet anymore. I ...
3
votes
1answer
2k views

Why my geth fast node suddenly stopped running?

Fatal: Error starting protocol stack: gap (#3) in the chain between ancients and leveldb when I run geth node for ropsten by : geth --testnet --syncmode "fast" --cache=512 --rpc --ws --shh console ...
3
votes
3answers
2k views

how to deploy smart contract in ethereum network using ropsten network?

I have created a smart contract(a standard token smart contract) in solidity and truffle. Now I want to deploy it to ethereum network. I want to use ropsten network because I want to use metamask ...
2
votes
1answer
431 views

How to call contract state-changing method on Ropsten via Infura using web3@1.0.0?

I have the following contract: pragma solidity ^0.4.24; contract Escrow { address public owner; event LogReceivedFunds(address sender, uint amount); event LogReturnedFunds(address ...
0
votes
1answer
1k views

Waiting for transaction to be mined

When calling any method on a contract https://testnet.etherscan.io/address/0xabc7a3a72af1f94ff6029ef01bc0f7c49e2ed637 using Browser Solidity https://ethereum.github.io/browser-solidity/ on Ropsten ...
6
votes
2answers
2k views

Is there a reason Ropsten doesn't have the same block gas limit as mainnet?

It appears as though Ropsten still has a limit of 4.7m gas while mainnet is almost 8m. This makes testing for real-world dapps difficult. Why is it that ropsten and mainnet are not in alignment with ...
4
votes
1answer
523 views

What replay attack protections does Ropsten provide?

I understand the Ropsten testnet was partly necessary because of some broken replay-protection measures on Morden. So what's different for Ropsten? Is the nonce simply incremented by a smaller ...
2
votes
1answer
65 views

How to know in advance the gas used by a transaction?

I want to send an ERC20 token (Ropsten network). So I execute a function 'transfer' on a contract. When The transaction is sent, I can get the gas used in the receipt. Few months ago this amount was ...
2
votes
1answer
1k views

Ganache is not showing any events

I have a contract method which emits events but ganache seems not to catch any events. I say this because when I deploy my contract on ropsten the events are being caught fine but only in ganache I ...
2
votes
1answer
180 views

Gas cost tests: Sending a transaction to a new address is more expensive?

A friend and I were thinking about transaction costs, is there any attached cost to send a transfer to a new address that has not been stored on chain before? So we started digging. First off we ...
2
votes
2answers
951 views

Where can the parity blockchain files be found?

On my Mac I am looking for the Parity blockchain file for the ropsten chain. I checked the following locations: ~/.parity and ~/.local but both directories don't exist. ~/.ethash contains 1gb sized ...
2
votes
0answers
724 views

Transaction stuck since yesterday

I'm on Ropsten network and since yesterday I did a transaction with 5 039 400 Gas and now all my transactions are in status pending. But with another account I can make a transaction to this stuck ...
1
vote
1answer
456 views

Why the balance that I see in the Ropsten isn't reflected in Truffle console?

This is my account #1: http://ropsten.etherscan.io/address/0x6bc701e7c3b642fc12a3a6f7d1144b8200a26401 and I sent some ETH to account #2: https://ropsten.etherscan.io/address/...
1
vote
3answers
458 views

When creating a new contract I receive a "contract code couldn't be stored" error but the contract is still created

Sale.new({ from: state.account, value: value, gas: 4000000 }).then((instance) => { // do something with instance }).catch((err) => { alert(err) }) When the above code runs I sometimes ...
1
vote
1answer
326 views

Can i write in the data field of a transaction?

I read here Is it possible to insert some custom data in the DATA field of an Ethereum Transaction? that it is not possible to write in the data field of a transaction, even if it is a simple balance ...
1
vote
1answer
286 views

Gas estimation errored with the following message error upon contract deployment

I am trying to deploy my contract CoinFlip on Remix using Injected Web 3 (Ropsten, Metamask) but I am getting the gas estimation error. I'm not sure where the error is coming from. I also tried ...
1
vote
1answer
1k views

"Gas estimation failed" on Ropsten using MetaMask!

I'm testing a smart contract using Remix, MetaMask, Ropsten. Yesterday I developed my contract on Ropsten network and everything goes in the right way. Today I was developing the SAME contract code, ...
0
votes
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,...
0
votes
0answers
286 views

Alternatives to get LINK tokens in Ropsten, for RNG

Sorry if this question sounds like very newbie (and maybe it is. I'm developing a Smart Contract which needs a random number generation, and after researching some time it seems that ChainLink VRF ...
0
votes
1answer
487 views

Ropsten Network - geth console does'nt give updated blocknumber

I have used the command : geth --testnet --syncmode "fast" --rpc --rpcapi db,eth,net,web3,personal --cache=1024 --rpcport 8545 --rpcaddr 127.0.0.1 --rpccorsdomain "*" --bootnodes "enode://...
0
votes
0answers
932 views

Ropsten Network down?

According to Etherscan the last mined block was block 2933931. However, my node is stuck at block 2933993. On their website they are announcing the following: "Node Resynch in progress. Indexing ...
0
votes
1answer
171 views

Error linking library when deploying with via Infura (ropsten)

I'm trying to deploy via Infura to ropsten and get this error. The local deployment works without a hitch. Linking SafeMath to contracts Error encountered, bailing. Network state unknown. Review ...