Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [testnets]

testnets are an alternative blockchains to be used for testing and development with no value attached

1
vote
0answers
427 views

Web3 Event Filtering timeout

This is the code I use to get all events from a certain contract. Solidity: event NewEvent(address indexed contractAddress, address newBOPAddress, address payer, uint commitThreshold, bool ...
1
vote
2answers
715 views

Restarting geth node, doesn't work properly with cron nor Ubuntu upstart service

Restarting geth node, doesn't work properly with cron nor Ubuntu upstart service My geth node fails once in a day or so. Tried everything, but still keeps failing. Geth 1.6.1 hangs throwing "...
0
votes
0answers
372 views

Ropsten testnet custom token problem

I created a custom token on ropsten testnet. I send my tokens inside my wallet accounts and it appears inside accounts and also on ropsten etherscan. The problem accurate when I send my tokens to ...
2
votes
1answer
382 views

Why is the Rinkeby testnet only available when using geth and Kovan only available when using Parity?

Why is the Rinkeby testnet only available when using geth and Kovan only available when using Parity? Why is it not possible to connect to every testnet using every client? All clients can connect to ...
0
votes
1answer
192 views

What is my Testnet ether worth?

I started mining on the testnet and my main account (Etherbase) is getting ether quickly. It started 20 min ago and already have almost 300 ether and counting, which I think is a lot of money. Is it ...
0
votes
3answers
1k views

Can't get ether from Rinkeby testnet faucet

I'm a new user trying out the Rinkeby testnet. I followed the procedure in this youtube video. But I can't get ether. This page says "Invalid User... boom!" I've contacted GitHub. They suspect that ...
1
vote
1answer
2k views

Geth Testnet Sync takes forever

I am trying to deploy a smart contract in the ethereum testnet and in order to accomplish that I tried to sync the Ethereum testnet "ropsten" using geth. I used the command below to do it. geth --...
1
vote
1answer
273 views

Parity Development Chain

I am new to parity and wanted clarity on the clarity development chain Is it like testrpc ie. stored in local and not like the testnets (ropsten, kovan and rinkeby) which are simulation blockchains?
1
vote
0answers
171 views

Local ethereum node contain two different blocks but with same height

I am using geth node and found 2 different block with same number eth.getBlock("0x162ae4b189f77ed65d0be270aa8dea08d4e7dcd70432a7d1fd4e6b0fb1b301d6") { difficulty: 1001546728, extraData: "...
0
votes
1answer
148 views

Is it possible to sync on the testnet -Ethereum-? [closed]

I want to learn about blockchain and installed ethereum, web3, node.js and npm in a VM. The problem is that this machine has only 512MB ram, 5GB Disk e CPU I don't really have an idea but wouldn't ...
1
vote
0answers
132 views

Get test ether in parity account

I installed parity-poa-playground from (https://github.com/dstarcev/parity-poa-playground) on Windows 10 and managed to made it working with parity configured from (https://github.com/paritytech/...
2
votes
0answers
345 views

How to send ether from one account to another in a smart contract deployed on testrpc

I'm interested in writing a smart contract using solidity that sends ether from one account to another. What would the syntax be? If possible, could you point me to a solidity contract that sends ...
3
votes
0answers
231 views

Why are there pending TXs with high gas prices?

Rinkeby has pending transactions, some of which have gas prices of 100+ gwei and have been pending for over half an hour. Why is that? Are sending too little gas?
0
votes
1answer
600 views

geth --testnet attach “getsockopt: connection refused”, with blockchain saved on external storage

I have just finished syncing to the testnet, but I'm having trouble running geth console on it. Storing the blockchain on an external usb drive, this is the command I used to start geth on the ...
5
votes
2answers
4k views

Where can I find test-ether for the Kovan Test Network?

I have tried getting some using my github account but my account got flagged immediately and the program wasn't recognizing my account (Since it wasn't public due to being flagged). Are there any ...
4
votes
1answer
865 views

How can I split my Contract up into different smaller ones?

I am learning the Solidity language and I have been experimenting on the Ropsten Testnet, I have tried several things with a contract I created, yet everytime I try to create it, remix solidity IDE ...
0
votes
2answers
2k views

Is it possible to connect a swift iOS app to Ethereum?

Is it possible (and in that case how?) to connect an iOS app, build with swift using xcode, to an Ethereum testnet? So for instance a user would be able to login and set or get a value which is saved ...
1
vote
2answers
615 views

Ethers Required for Test Net [duplicate]

I need 100 ETH for My Ropsen Test net account. Can any one please send ETH to my wallet, I am ready to exchange for Fiat Currency? Thanks Amit Modi
2
votes
0answers
120 views

Not able to successfully do transactions of default MetaCoins(from Truffle) on local testnet on MetaMask

I have installed truffle and ran the default contract provided by truffle. I successfully compiled,migrate and put the default dapp on local testnet http://localhost:8080/.I am able to see the dapp ...
0
votes
1answer
652 views

Disable block mining reward in private testnet

Is there a way I can disable the generation of block reward in a private network during creation? Any parameter in genesis.json can do so?
1
vote
1answer
276 views

Running real smart contracts on the testnet?

Let say that hypothetically I issue a contract on the testnet that doesn't need to receive any ether. Kind of an ERC-20, but in this case users won't exchange real ethers for tokens. These tokens ...
4
votes
1answer
3k views

Why does miner.start() return null / does not start in private testchain?

I created a private testchain following an answer I was given to another question. It works fine for the most part I've had issues using miner.start(). It takes a long time to start. I'm surprised ...
6
votes
1answer
624 views

Ethereum Testnet mobile app wallet

Is there any Mobile Wallet like Jaxx, but with testnet(like, kovan, ropsten)? Please do suggest me, I am workin on the cryto coin transfer application.
2
votes
2answers
2k views

Unable to attach to remote geth error

Following this answer, I'm running $ geth --dev to start a testnet, which works as expected, returning INFO [08-01|14:32:29] IPC endpoint opened: /Users/mcansado/Users/Desktop/private/datadir/geth....
4
votes
4answers
5k views

Ropsten faucet not working for me

I tried to send test ethers to the main account address created on Ethereum wallet by using the Ropsten faucet (http://faucet.ropsten.be:3001/) but did not receive any . My wallet is synced with ...
1
vote
1answer
332 views

Why is mining not working/very slow in my testnet?

I created a testnet to allow faster smart contract testing (I don't want to use Truffle for now). My genesis file is { "config": { "chainId": 15, "homesteadBlock": 0, "...
1
vote
1answer
197 views

Network time discrepancy affecting sync

I'm trying to deploy a contract to the Ropsten testnet using Truffle. Already tested on testrpc, worked smoothly. I keep getting the error "Exceeds block gas limit" when I try to deploy to testnet. ...
2
votes
0answers
129 views

Very big fee for token on testnet

I'm new here and try to make my own token. I kinda made it actually, but fee for it is very big(cheapest one is 0.65 eth). Here's my code: pragma solidity ^0.4.13; library SafeMath { function mul(...
1
vote
1answer
364 views

right procedure to check for ether balance in my geth testnet mining node

If this is the address of my node: which I created with this command: geth --testnet account new then is it correct that I check the ether balance of my account in this way: according to my ...
0
votes
1answer
640 views

how to check if my testnet geth node has mined some ether?

As per the instructions detailed in this post, I've created an account: and started running my geth node: how can I check if it's mined any ether yet? the answer of @lungj resulted in this:
0
votes
1answer
3k views

Please send me some faucet ETH of ropsten network [duplicate]

My adress of metamask wallet is 0x7E279990b12980d37C87abF402f1356b1Dc6F05f Please soem one can provide me some ETH faucets to test my application?
3
votes
2answers
840 views

connect Mist to geth running in private testnet

I'm trying to run a private ethereum testnet for myself. I have installed geth 1.6.7 from the official Ubuntu PPA, and downloaded the latest Mist release from its github repo. I've run geth --...
1
vote
0answers
178 views

Testnet mining greyed out

I'm using Ethereum Wallet with Testnet Ropsten, and the blocks appear to be synced. The "Start Mining" option appears to be greyed out (same in Mist). Any ideas on how to fix this?
1
vote
1answer
331 views

how do I know when my testnet node is fully synchronized, significance out output text

I've started my geth node with the following command: $ geth --testnet --fast --cache=512 console Now my console looks something like this: How will I know when my node is fully synchronized? ...
7
votes
2answers
11k views

Ethereum Wallet vs. Mist (vs. Testnet vs. Mainnet)

I'm having a bit of trouble completely understanding the inner workings of ETH and the Ethereum wallet UI vs Mist (when having used testnet), and I need to ask some rather stupid questions to ...
1
vote
1answer
565 views

Running Ethereum Wallet and geth console together

I am a newbie with blockchain overall. What I am trying an an experimental basis is: having a webpage display my balance in one of my accounts (on test-net). I am using meteor for my web interface, ...
0
votes
1answer
74 views

When Mining on Testnet do I need to Sync again?

I have fully synced Mist and have now switched to Test-Net and it appears the Sync process has begun again. Is this now syncing the Test environment? if so then follow no:2 Can I only begin mining ...
3
votes
1answer
3k views

geth connect to TEST-NET

When I connect to geth with geth console it automatically connects to Main Network. I would like to connect TEST-NET. How I could connect to TEST-NET with geth? thanks.
1
vote
0answers
707 views

Migrating a smart contract to the kovan test network using the truffle framework just hangs

I am trying to deploy a smart contract to the Kovan test network with the truffle framework. When I run truffle migrate --network kovan it just hangs for ages at the following place: Running ...
2
votes
1answer
514 views

How can I generate EOA address on testnet using JavaScript without access to ETH node?

I just started Ethereum. I found how to generate an address by using JavaScript like below. I need an address for testnet. I'm using Ropsten testnet. In bitcoin, I can generate from pubkey to both ...
1
vote
2answers
511 views

Created first ETH token on test-net how does a monetary value get decided?

So I created my first token on the Ethereum network and I'm curious how does it get a fiat value. For example they are being used as a test service on a website but how does coincap or coinmarketcap ...
5
votes
1answer
2k views

Parity configuration for rinkeby testnet

Can someone provide me an genesis block configuration json for Parity client here is my setup described: I've installed the client (version: Parity/v1.6.8-beta-c396229-20170608/x86_64-linux-gnu/...
1
vote
0answers
32 views

Connect meteor Dapp to ethereum testnet [duplicate]

I'm trying to build a Dapp using Meteor and Ethereum, but I'm having trouble connecting Meteor to Ethereum testnet. How can I do that? and is it possible to do without using a client such as metamask?
0
votes
1answer
563 views

How long does it take for ETH to pass from one account to another on test-net? [duplicate]

I've used this service to send me 1ETH on test network. Service worked, it has even given ID of transaction, but ETH has not arrived to my mist wallet in 5 mins. Is it expected to work so slow? Thanx....
1
vote
1answer
191 views

Problem retrieving ABI array from API of etherscan

I deployed my contract on ropsten through metamask and solidity browser and published it on etherscan so I can import ABI code for my nodejs app and work accordingly. When I open my contract's ABI ...
1
vote
1answer
206 views

Can't start mining on TEST-NET in Etherium Wallet

Just installed Etherium Wallet, downloaded blockchain, but can't start mining on TEST-NET. When I click 'Start mining', I get console error. Also I can't start mining from console. See screenshots ...
3
votes
3answers
321 views

How long should mining take on the testnet?

I've been following the excellent tutorials by Jordan from Decipher, and am now really keen to publish something to testnet. I've got a geth node running on an AWS small instance, and it's been ...
1
vote
2answers
174 views

truffle console issues without testrpc running

I am attempting to deploy a contract to the ropsten network and having issues with truffle console. I am following this tutorial. When I try to access the console with this command - $ truffle ...
0
votes
1answer
306 views

How to move from testrpc development to geth?

I've made an application in nodejs in which I'm doing truffle migrate to deploy contract and it make my contract's build saving my ABI which i use for contract invocation and the http provider for ...
4
votes
2answers
1k views

Need help with setting up eth-netstats and eth-net-intelligence-api

I have set up an ethereum node on an ubuntu server. I'm running a geth instance with a miner in a private test net. For the life of me I cant get eth-net-intelligence-api to monitor the eth-network. ...