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Questions tagged [ropsten]

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

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36
votes
5answers
7k 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 ...
88
votes
2answers
20k views

Comparison of the different TestNets

The Metamask client allows access to three test networks: Ropsten Kovan Rinkeby I'm curious: What are the similarities / differences between them? Which use cases are best for each network Are ...
18
votes
1answer
14k 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.
33
votes
4answers
5k 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 ...
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 ...
6
votes
5answers
2k views

How to deploy contract to the Ropsten test-net using web3.js

I am newbie in solidity. I don't understand what steps I must do for deploy contract in the Ropsten test-net. This is my contract: pragma solidity ^0.4.15; import './ERC20.sol'; import './SafeMath....
17
votes
2answers
2k 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
727 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) ...
3
votes
1answer
954 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=...
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
3answers
3k 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:/...
2
votes
1answer
435 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 ...
16
votes
2answers
9k 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 ...
5
votes
1answer
700 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?
7
votes
4answers
912 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 ...
6
votes
1answer
704 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
3k 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,...
5
votes
2answers
6k views

How to obtain all transaction of a contract?

I'm trying to obtain the all 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
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 ...
4
votes
1answer
883 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 } ...
3
votes
2answers
2k 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 --...
3
votes
3answers
1k 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
239 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 ...
1
vote
1answer
4k 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....
0
votes
1answer
679 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 ...
5
votes
2answers
1k 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
336 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
2answers
884 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
707 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 ...
2
votes
1answer
30 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 ...
1
vote
3answers
428 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
0answers
37 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 ...
1
vote
1answer
304 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/...
0
votes
0answers
816 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
147 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 ...
0
votes
1answer
228 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://...