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Questions tagged [ethereum-wallet-dapp]

Tag for the questions related to the deployment of the contracts using Ethereum wallet.

172 questions with no upvoted or accepted answers
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75 views

How to run multiple instances of Ethereum Wallet simultaneously on a Windows machine?

When I do Ethereum development, I'd like the run multiple instances of Ethereum Wallet at the same time on my work machine. For example, I have a ganache development node server, a private-net server ...
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1answer
84 views

Need help with start mining(I am getting like this)

I am new to ethereum private blockchain System information: geth version:1.8.2 os&version:linux synopsis: when i tried to connect peers to my private blockchain it showing like WARN [03-20|11:...
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319 views

How can I create public-private key for a ERC20 wallet that using user's email address?

I am working on a side project that provides a wallet (Think Coinbase, Binance, etc) like interface to users where they will sign in using username and password. To be able to provide a clearer ...
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2answers
2k views

Ethereum wallet is stuck at “looking for peers”

I'm trying to create a private network or test network to work with smart contracts. But when I start ethereum wallet it is always getting stuck at "Looking for peers....". Below is the screenshot for ...
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369 views

Deploy Contract that Imports Other Contracts in Mist

I have a main smart contract that Imports two other contracts by their file path. Inside the contract I have: Import "/test/files/test.sol" Import "/test/files/testimport.sol" So I have three ...
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49 views

Private Chain Self-Hosted Mist Wallet Build Issues

I'm currently trying to deploy a fork of the Meteor Wallet Dapp on a custom private chain and I'm a bit confused at the set up, there seems to be a bit of lacking documentation on how Mist, Meteor-...
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156 views

ethereum wallet and mist both download separate blockchain?

I am on OSX using a mac pro. I downloaded and installed mist, before ethereum wallet (ew) on advice from an ether forum. Mist started downloading the blockchain. It took up too much space on my SDD ...
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62 views

Does Mist Wallet support transfer of Ether through a Smart Contract?

I have implemented a private ethereal blockchain. I have also deployed a simple trading smart contract. It runs fine once deployed through MIST wallet. The problem is that it does not subtract ether ...
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218 views

Transaction not showing up in Ropsten Etherscan

Around an hour back , I initiated a transaction on Ropsten network . I used Ethereum wallet for the transaction. Attaching a screenshot of the transaction below . But till now I cannot see this ...
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1answer
158 views

Transfer ETH from wallet into two different accounts(sites)

Could I have one wallet that can be used for two different cryptocurrency sites? For example: If I transfer ETH into my wallet form one site, could I used my ETH in my wallet to deposit the ETH into ...
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76 views

Can't deploy contract as I can't input value into “FROM” field

I'm trying to deploy contract through ethereum wallet . But I can't input value into the FROM field . What should I do?
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1answer
125 views

Interacting with trade/order function which require sha3 hash

I'm currently building a dapp that use both of theses functions : function order(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce) { bytes32 hash = ...
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4answers
1k views

How do I make a smart contract on MyEtherWallet?

I've tried downloading the Ethereum wallet but it's taken weeks to download blocks. The only other option is MyEtherWallet. I asked on Reddit someone said theirs a way to do it with MyEtherWallet and ...
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262 views

How can I debug the interaction between two contracts?

I have a solidity file that has: pragma solidity ^0.4.18; contract World { mapping (address => bool) players; mapping (address => ResourceBank) resourceBanks; function giveZero() ...
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197 views

how to create multisign wallet from scratch?

I am new in creating smart contract I want to create a multisign wallet from scratch?? I want to create accounts 1st and want to hold private key safely
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577 views

How to query the blockchain data ?

I am developing an KYC dapp where I am keeping customer information like name, dob, age etc. Each customer is having an account address ( i.e Ethereum account). Basically this is a private blockchain. ...
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0answers
488 views

How to restart mining in my private blockchain?

I successfully setup a private blockchain in my laptop and mined around 5160 Ether (no market value). Also deployed a smart contract. Now I had to close my laptop and when I came back and turned the ...
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0answers
185 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?
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1answer
67 views

Which one of methods should I choose for deployment of smart contract geth or a wallet if I have to build API for smart contracts in nodejs?

I'm having trouble to understand which method would be better for deployment geth or a wallet if I'm building API in nodejs using web3. Where exactly is the contract stored?? Is the contract ...
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0answers
296 views

Ethereum Wallet App transaction failed

I am using the Ethereum wallet app made by FreeWallet.net. I sent 5 Ether then had a alert failed. What's problem? Thank!
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0answers
155 views

How do I specify a lower gas price in the Ethereum Wallet when creating a wallet contract?

I'm trying out the Ethereum Wallet Dapp (which may or may not also be called Mist, I'm a little confused about the naming. But the About screen says "Ethereum Wallet 0.8.10"). This wallet app seems ...
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0answers
141 views

“No data is deployed on the contact address!” Token issue

Here is my code: pragma solidity 0.4.11; contract MyToken { string public name; string public symbol; uint8 public decimals; string public standard = 'RNTLcoin 0.1'; uint256 public totalSupply; ...
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1answer
139 views

Can a mapping or array within struct made public?

contract CrowdFunding { struct Funder { address addr; uint amount; } struct Campaign { address beneficiary; uint fundingGoal; uint numFunders; uint amount; mapping (uint =...
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0answers
76 views

Cannot see ethereum in main account on mist wallet

I created a mist wallet yesterday and sent some ethereum to the account address but I cannot see ethereum in the main account. Is there something I'm supposed to do in order to see the ethereum amount ...
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0answers
369 views

My Wallet address / password

I'm mining to my address and I can see the accumulation of my ether when I go to my mining pool's website but I'm still unsure of how the wallet works. I don't remember if I got my wallet address ...
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0answers
197 views

Ethereum usage for financial transaction

I am new to ethereum blockchain, and i have following scenario of simple money exchange to be implemented: Consider three account Sender(USD), Receiver(EURO) and Provider. Where provider is account ...
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0answers
131 views

Ethereum Wallet / Mist v0.8.8 keeps shutting down and therefore not syncing

I hope someone can help. I have Ethereum Wallet v0.8.8 and Mist v0.8.8 (windoes 64bit). They open OK, and looks like they start to sync with the blockchain. However, after 30-60 seconds they always ...
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0answers
59 views

Address changed at contract deployment

I'm fooling around on the testnet, and I made a contract with an "owner", input manually (not necessarily the sender) that has admin-like privileges. When I deployed my contract I pasted my main ...
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0answers
116 views

How do I write to (invoke) a contract with arguments from Ethereum Wallet?

I'm trying to use the BirthdayGift contract within Ethereum Wallet, and am not seeing how to do so. The UI was hidden and with help from Christopher I expanded the window to see the UI for invoking ...
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0answers
61 views

Creating add transaction and seal block from mix localhost on button click

When we open mix we have 3 windows. The first shows contract, the second shows the front end and the third shows the blocks and transaction while we create a new block or approve transaction. How can ...
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1answer
302 views

My Ethereum Wallet/Mist Stuck after Byzantium update

After updating my ethereum wallet and mist now they are stuck at around block 4,375,146. It actually keeps downloading new block but never goes up to the latest block (always +4000 block behind... and ...
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3answers
882 views

How to access ethereum smart contract(already deployed) in a Java application via its address using web3j?

I have an existing Smart contract address,abi,binary code. I need to access it from a Java application.Is it possible to do this without creating a java wrapper class?
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28 views

blockchain solidity tracking system

I am trying to make a code in solidity to add items to a blockchain which contains items and their tracking history (like when trace your order online for an item) (which at first are located in "...
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1answer
13 views

Connect dApp hosted on cloud with Geth running locally

I've my dApp running on AWS and Geth running locally. How am I supposed to connect my hosted dApp with the Geth? I'm connecting my web3(using web3.py) using my computer's(Windows OS) IP address. ...
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16 views

Can we connect custom Ethereum currency through java's web3j library ? If yes then how?

Im trying to create my own new currency using solidity and ethereum platform and also i want to create an Ewallet of my currency using java so that my ewallet could communicate through api .If u ...
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1answer
32 views

(error_10) Please enter a valid data value (Must be hex.)MyEther Wallet

im trying to deploy smart contract on Myteherwallet but geting an error while deploying byte code of smart contact which is written in solidity remix IDE I have even tried to change the object byte ...
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2answers
49 views

app.vote(1, {from: web3.eth.accounts[0] }) not working

I am following a tutorial from Dapp University about building Election Smart Contract. When I run this command in the console: app.vote(1, {from: web3.eth.accounts[0] }) I get the following error: ...
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0answers
23 views

How to build an ethereum based wallet with custom UI?

I have been interested in ethereum for quite some time now and have always wanted to learn ethereum development. I decided to create my custom erc20 tokens i was able to create 2,00,000 tokens. Now i ...
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0answers
33 views

Sign Message using passphrase only

I'm creating an authentication system using python and web3.py. I'm trying to authenticate a user using from web3.auto import w3 msg = 'sdb41554xcb4xc548cxd84dxcb' message = encode_defunct(text=...
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1answer
28 views

How to setup clef signer with clef --stdio-ui

I have geth running on rinkeby network and successfully used clef as a signer using command. clef --keystore ~/.ethereum/rinkeby/keystore --chainid 4 --stdio-ui Also started geth with clef as ...
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0answers
18 views

What Android App has block explorer functionality for Ethereum testnet?

I need to interact with my web app that has blockchain functionality and it creates wallets on paper (pls dont ask why). It's using ropsten testnet. Is there an Android app that I can easily scan the ...
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0answers
24 views

Error: Keystore: Must include seedPhrase in createVault inputs. How to fix?

i'm studying blockchain development, and i'm trying to create wallet with seed words using eth-lightwallet and vuejs. But i receive this error: Keystore: Must include seedPhrase in createVault inputs, ...
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1answer
23 views

Smart Contract Deployment issue

I am making a smart contract with a Transfer function. function transfer(address _to, uint256 _value) public returns(bool success) { //checking whether sender has enough number of tokens ...
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0answers
31 views

The reasons behind using public/private and addresses?

I understand that we need a public/private key so anyone can sign a message and miners can verify the signature using the public key. But, In this Question Relationship between Ethereum Address and ...
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1answer
38 views

Create multiple tokens for a unique property

here is the idea: we assign a set of unique tokens to a company and then we allow people to buy some tokens and get partial ownership of that company. How can I achieve this? I was thinking of ...
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0answers
26 views

Web3js v0.20.7 - callback ls not a function

I'm facing issue of callback is not a function in web3js 0.20.7 when i call the method of sendRawTransaction to deploy smart contract with web3. When i used the same method just to call deployed ...
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36 views

React + Ethereum + Solidity. Private Blockchain ether mining issue?

I'm making an app using react, ethereum and solidity. I'm signing up the user using.. web3.eth.personal.newAccount(); Then all users need to do certain tasks on app. They need to do certain ...
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2answers
119 views

How do I send NFT assets (ERC721 Tokens) from my Ethereum wallet to someone else?

I want to send my ERC-721 to my friend. Fast. Any suggestions?
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0answers
39 views

getting an error while deploying smart contract of ethereum

I am getting an error while trying to deploy smart contract of voting dapp on ethereum I have searched for the solution for the same and i got a question with same problem but there no solution. ...
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1answer
95 views

Unhandled promise rejection (rejection id: 1): Error: Transaction has been reverted by the EVM:

I don't know where i'm doing mistake. I have deployed my contract through remix and truffle and it was deployed without any mistake but now i'm deploying it from web3 solc@0.4.24 version and EVM is ...