Questions tagged [ropsten]

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

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3
votes
2answers
506 views

Want a large number of Test Ethers. How to get them?

I have made a proof of concept that works on Ropsten Test Network. Now for users to use it I need a large number of Test Ethers in my account. As far as I know, we can get only one ether with one IP ...
2
votes
1answer
450 views

Fix MetaMask gas price estimate on Ropsten

Update: For some reason, just redeploying with truffle migrate --network ropsten --compile-all fixed the issue, and MetaMask now suggests Gwei. After deleting build/contracts dir, I deployed my Smart ...
0
votes
1answer
158 views

Imported accounts in metamask are not visible using web3

I have a node in ropsten network and created 3 accounts say a,b,c using geth. Connected metamask with ropsten network and created other account 'd' using metamask and imported accounts a,b and c by ...
0
votes
1answer
262 views

Invalid JSON RPC response on ropsten [duplicate]

I am trying to connect to https://ropsten.infura.io/my key here with web3.js. I can read stuff off the block chain but cant write to it and have no idea why. Any help?
7
votes
4answers
876 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 ...
2
votes
3answers
2k 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:/...
0
votes
3answers
525 views

How to call a state changing function with web3.js (browser) and remote node?

Solidity Contract: contract MyContract { bytes32 public product; uint public amount; function setOrder(bytes32 _product, uint _reorderAmount,) public returns (bool success); } ...
2
votes
1answer
178 views

“Lost in transaction”

Yesterday I sent this tx on Ropsten network. It is a transfer for 999 ethers. eth.sendTransaction({from:"0x8c60d40a2e848251d139fc2b0b6b770bb3351ffd", to:"0xf9e33261328a1cdc62d3dc6b95880656a1f2a5d9", ...
0
votes
1answer
300 views

contract works in remix but not when deployed in ropsten test network

The contract is present at issue with var keyword in solidity. what to use instead of var keyword? It works in remix. Using remix i deployed the contract into ropsten test network but when i try to ...
0
votes
0answers
322 views

Can not sync to ropsten

I have trouble syncing to Ropsten. I have just upgraded geth version to 1.8.7, then i run the command to remove the old chain: geth --testnet removedb. Then the command: geth --testnet --syncmode "...
0
votes
1answer
1k views

Gas estimation errored with the following message… Error: gas required exceeds allowance or always failing transaction

I made a smart contract, but i got an error while deploying it , after i specified the Gas limit of 3000000 and a random value (wei) , and clicking on Create , i got the following error : ( i am ...
2
votes
2answers
967 views

Refund function in solidity smart contract not working

I'm trying to implement a HelloWorld smart contract to change 1:1 Ether into a Token (stored in balances) and vice versa - I can call the pay function and everything works out nicely but the refund ...
0
votes
1answer
189 views

Ropsten account address

When using for example ropsten testnet as a provider like https://ropsten.infura.io/<infura_token> How do I identify the account address of my transactions?
0
votes
2answers
133 views

My Dapp work on the private testnet but not in the public one

I have created this simple Dapp and it work fine in the private testnet & java VM inside Remix and outside it using a web interface. The problem come when it will be used in the "public" testnet (...
0
votes
2answers
228 views

Why Deployment of ERC20 token contract to Ropsten is taking lot of time?

I'm trying to deploy my ERC20 token contract on Ropsten network, It took 2hr 30 mins and still pending, what is happening, any problem with deployments? Is it linked to the recent batchOverflow Bug ...
4
votes
1answer
971 views

What happens when selfdestruct is called?

https://ropsten.etherscan.io/address/0xf825d3b3d06a4b46379a3c276df7f26abd055463 After selfdestruct call was made, all the balance was transferred to the deployer of the contract. Why are withdraw ...
0
votes
0answers
280 views

Local geth node for Ropsten keeps crashing and lost data

I am creating a local geth node participating in Ropsten to test my smart contract with other smart contracts such as ENS and Oraclize. Somehow I keep running into problem of geth crashing and losing ...
0
votes
1answer
206 views

How do I initially give my ERC20 tokens back to myself when deploying to mainnet

I have successfully deployed my tokens to Ropsten testnet and was able to supply them to myself by adding the contract address manually in metamask. https://ropsten.etherscan.io/tx/...
2
votes
0answers
137 views

Who created this alt-Ropsten blockchain and why?

I usually test on Rinkeby, but this week I have to test some mining stuff, so I tried to get synced up with Ropsten. Unfortunately, after 3 days of trying, I still haven't had any success. The main ...
0
votes
1answer
158 views

Failed to verify contract source code due to timeout/memory limit

Failed to verify contract deployed through remix on Ropsten network both using optimization and without it. Error is: Exception #1 Occured: ERROR|The Contract solidity compilation has exceeded the ...
2
votes
3answers
362 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 ...
1
vote
1answer
243 views

Geth fast sync takes way too long

I am syncing my local node with rospten test network with geth sync --fast, but it takes more than 24 hours, though 99% complete, i am not able to communicate with my token contract that was deployed ...
3
votes
1answer
652 views

Ropsten infura test network + web3 js event listener

I have deployed contracts on ropsten test network. truffle.js ropsten: { provider: function() { return new HDWalletProvider(mnemonic, "https://ropsten.infura.io/<api-token>") }, ...
2
votes
0answers
129 views

Etherscan for Ropsten not showing tx events anymore [closed]

Since today 2018-04-11 etherscan on Ropsten testnet does not show anymore the events related to a given transaction. It is very important for the testing and debugging of Smart Contract to view the ...
1
vote
1answer
70 views

Buying ERC20 tokens on Development stage

How can we simulate buying ERC20 tokens from a contract deployed on Ropsten for Development and Testing purposes without involving real Ethers?
0
votes
1answer
661 views

Getting the error :- Web3ProviderEngine does not support synchronous requests

Below is my migration file, var startTime = web3.eth.getBlock(web3.eth.blockNumber((err, res) => {})).timestamp + 30; var endTime = startTime + 4 * 60 * 60; var presaleLimit = startTime + 1 * 60 * ...
2
votes
1answer
601 views

Why Ropsten etherscan and local Ropsten are not showing the same data?

I am running geth to sync to ropsten testnet. I verified that block 0 are identical. However, seems like the local geth doesnt sync as high as the ropsten.etherscan.io site claims and checking ...
6
votes
1answer
699 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 ...
2
votes
2answers
407 views

is it possible to steal my ether when I unlock it?

is it possible to steal my ether when I unlock my account? The private key is stored in my local storage. I am running geth on my PC. How can someone make transaction with my account? without my ...
1
vote
1answer
136 views

Using Proof of Authority (similar to kovan and rinkeby testnet) in my private ethereum network

Can one run a private proof of authority ethereum network? Similar to the kovan and rinkeby testnet.
-1
votes
1answer
166 views

Problem in Veifying Smart Contract On Testnet

I'm not able to verify my smart contract on Rinkeby and Ropsten Testnet Network. Rinkeby Link - https://rinkeby.etherscan.io/address/0x029798a8c21050cbaaa2d5ecbd5e06622b602b82 Ropsten Link - https:/...
1
vote
2answers
1k views

Unable to transfer ERC20 token from another smart contract to the person sending Ether

I've created two smart contracts and both are deployed on Ropsten Test Network. I'm using MetaMask for transactions. ERC20 token that has the implementation as below (please do note that I am able to ...
2
votes
1answer
182 views

ERC20 Tokens - Decimals and resell

I have just created an ERC20 Token; i set the decimal to 4 and bonus value to 1200 then i sent 0.3 ether to its contract address to purchase my new tokens. I received 36 quadrillion tokens in return ...
1
vote
1answer
368 views

What is faster the main network or Ropsten?

Ropsten sometimes works VERY slowly. What's about the main network? What is usually faster the main network or Ropsten? I do not yet have Ether to try to deploy something on main network and I want ...
1
vote
1answer
302 views

How to use web3.eth.getTransaction() with infura, or is there any alternative to replace infura?

I tried to deploy my contract on Ropsten TestNet with infura and web3.js, however when I used some functions it returned 405 error. I notice that maybe I could not use web3.eth.getTransaction() when ...
2
votes
0answers
217 views

geth testnet node killed after a while

My geth testnode somehow always killed itself after a while. What happened and how can I make it continue running? Here are the screenshots ...skipped some in-between synchronization lines... Here ...
0
votes
0answers
62 views

Why does this contract work on Ropsten but not on a private blockchain?

The following contract runs successfully in Ropsten but not on a private blockchain. I assumed it could be a gas issue. So I increased the gaslimit and started a new blockchain but I get the same ...
0
votes
0answers
814 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
86 views

How can lite-server start on different machine?

I created the Front-End side of my DApp, now to run it on the Ropsten Test Network I need to start lite-server (npm run dev) and it open up the browser with my index.html file. If I open the file ...
0
votes
1answer
59 views

Transferring files over blockchain from ropsten-test network

I am new to blockchain and working on a university project. I am trying to simply buy and sell music over the blockchain. Currently I am using a string to act as the 'transaction', but learnt this ...
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 ...
1
vote
1answer
518 views

`ecrecover` throwing out of gas error on Ropsten

Here : http://solidity.readthedocs.io/en/v0.4.21/units-and-global-variables.html , It states It might be that you run into Out-of-Gas for sha256, ripemd160 or ecrecover on a private blockchain. The ...
0
votes
1answer
308 views

Import accounts of Ropsten node in localhost to metamask

I have ropsten node in localhost:8545 with 2 accounts. Inorder to connect ropsten and metamask I need wallet seed... From where I could get wallet seed for accounts in localhost.
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
141 views

Ether received via faucet is not visible in geth console [duplicate]

I have ropsten network running in localhost using command : geth --testnet --syncmode "fast" --rpc --rpcapi db,eth,net,web3,personal --cache=1024 --rpcport 8545 --rpcaddr 127.0.0.1 --rpccorsdomain "*...
0
votes
1answer
256 views

I tried to deploy a contract on Ropsten, but always get the following error

PS D:\nodejs\rff\metacoin> truffle --network ropsten migrate Using network 'ropsten'. Running migration: 1_initial_migration.js Deploying Migrations... Error encountered, bailing. Network state ...
0
votes
1answer
222 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://...
2
votes
1answer
185 views

Mapping not working with address type

The following code works, that is, I can call add(2,3) and then get(2,0) returns 3: pragma solidity ^0.4.10; contract Bar { struct Foo{ uint x; } mapping(uint => Foo[]) foo; ...
0
votes
1answer
136 views

Deploying Crowdsale in Ropsten Network givin Gas Limit issue

Below is the Code of My CrowdSale , which is giving The contract code couldn't be stored, please check your gas amount. pragma solidity ^0.4.18; import "./TorCoin.sol"; import "zeppelin-solidity/...
1
vote
1answer
659 views

Deployment to Ropsten via Infura Exceeds Gas Limit

I have encountered the Exceeds Gas Limit problem back when I was deploying to my local Ganache. I had to refactor my contracts and break it apart to several contracts. I got it to work. Now, I'm ...