Questions tagged [ethereum-wallet-dapp]

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

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7
votes
2answers
3k views

Token transfer: Intrinsic gas too low

I have created a cryptocurrency by following this link .I have deployed the contract in Mist. I am using transferFrom() function in Ethereum wallet to transfer currency from one account to other but ...
9
votes
1answer
9k views

How can I specify an external harddrive as the download target for the Mist blockchain in Ubuntu?

How can I specify an external harddrive as the download target for the Mist blockchain? Hi there, I am using Linux Ubuntu 15.10 My harddrive is quite full and I need to download the whole Mist ...
3
votes
1answer
2k views

How can I receive ETH at Mist sent from other wallet

I want to receive ETH in my Mist account to test ETH transfer. But it doesn't work well so far. I tried to send ETH to my Mist account from other bitcoin and ETH transfer service. but I cannot receive ...
5
votes
2answers
695 views

How does mining work in ethereum private test net?

I'm working on smart contracts and using Ethereum wallet. I have formed a private test net and successfully deployed smart contracts on that network. But, I didn't get how the miner functionality ...
4
votes
1answer
4k views

How to specify the gas when deploying a new contract in Mist?

When I send transactions to my contract, the wallet tells me that the gas runs out, so how can I specify the gas amount when deploy a new contract?
0
votes
1answer
133 views

Can contracts be executed on PRIVATE-NET?

Using geth commands, I've created a private blockchain network and two accounts. Using Ethereum Wallet, I've also successfully mined ether using one of the accounts. However, doing any of the ...
4
votes
2answers
4k views

What Is The Easiest Way To Split ETC from ETH in 2017

I am not very technical. I want to know if there is an easier way to split eth from etc without using the mist wallet 0.8.1 in 2017.
2
votes
1answer
120 views

How do the Ethers in Ethereum Wallet increase?

I have created a private test net and an account in Ethereum Wallet by referring this link: https://souptacular.gitbooks.io/ethereum-tutorials-and-tips-by-hudson/content/private-chain.html I have ...
1
vote
0answers
375 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 ...
2
votes
1answer
151 views

Confused about my Wallet

I'm new to Ethereum and I'm really confused. I am mining to my my Eth address and when I check my address at https://eth.nanopool.org/account/0xADDRESS I see how much ether I have mined so far. But ...
3
votes
1answer
43 views

Unlisted ethereum wallet

Unlisted ethereum wallet. Maybe can you help me?
2
votes
1answer
97 views

Which is the best Ethereum solution for small day today transaction? Like a asset exchange for $1-2

Building a portal where customer can rent out asset for the cost of $1-2. Is there any platform with low transaction cost but still make all the entries in the ledger?
2
votes
1answer
11k views

How long does eth.sendTransaction take?

Sorry if this type of question has been asked before, but I have not found any questions dealing with this scenario. I am using Geth and am kind of new to this thing. I bought some Ether on Coinbase a ...
2
votes
1answer
921 views

Importing contracts files to Ethereum Wallet

I tried running a contract with the code below inserted on the ethereum browser and it complied successfully. I tried it on the Ethereum wallet and its giving an error of source not found. import "...
1
vote
0answers
205 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 ...
9
votes
1answer
7k views

Could somebody please explain in detail what this Ethereum contract is doing?

I am new to ethereum & blockchain technology and trying to understand somethings(Etheruem, Truffle, DApps etc.) here and there from the internet. From Ethereum official website, Create a ...
3
votes
2answers
159 views

How to invoke a fallback function from Ethereum Wallet?

I would like to invoke a fallback function of a contract from Mist Wallet. However, I am not able to see it in the drop down list of functions.
4
votes
1answer
2k views

How to deploy multiple contracts which are dependent in Ethereum Wallet?

I have two contracts "college" and "department" . They are dependent contract. How do I deploy them in Ethereum Wallet ? Sample Code : contract Department { function enroll(uint depID, address ...
1
vote
1answer
441 views

How to access variables defined in struct using 'Truffle'?

This is the sample contract given :- contract User { string public userName; mapping(address => Service) public services; struct Service { ...
3
votes
1answer
1k views

Problem verifying source code on Etherscan

This is really annoying I have tried putting in the ABI. Keep getting a constructor error. I have tried many combinations, nothing seems to work. Following is the source code I deployed to Testnet ...
1
vote
1answer
670 views

Buy and sell of my tokens

How to implement the buy of tokens. That is, the customer transfers money to the address and receives tokens at his account. And Similar to sold?
2
votes
0answers
1k views

why ethereum wallet keeps on “Downloading new node” and doesn't move to sync or anywhere else?

I 've just installed the wallet from github it all went good but now I m stuck with that downloading new nodes stuff and it doesn't seem to go further to sync or anywhere else. Mac OS X 10.9.5 Mac Pro ...
2
votes
1answer
443 views

How to hide a function of all but visible to the owner

How to hide a function of all but visible to the owner. For example there is a function: function freezeAccount(address target, bool freeze) How to hide it from others.
3
votes
1answer
170 views

Error openning the Ethereum wallet win64 0-8-8 on Windows 10

I'm getting this error when opening the Ethereum Wallet x64 version 0.8.8 on Windows 10: And then I see this window: I don't see any log file, but i see below Information in Windows Event log ...
4
votes
1answer
213 views

DEVgrants program still alive?

is the DEVgrants program to promote the development of ethereum dapps still alive ? https://blog.ethereum.org/2015/04/07/devgrants-help/
1
vote
1answer
331 views

Unable to execute contracts using 'Ethereum Wallet' on Etherum Private Chain due to out of gas

I have created Ethereum Private Network and mined sufficient ether.I have deployed a Smart Contract 'Hello World' and tried to execute the functions in the deployed contract. But the contract won't ...
1
vote
0answers
36 views

Deleting chain data to start new year fresh [duplicate]

I guess I should start saying that I am not a developer. As a noob, how can I delete the chain data so that I can re-download the chain again using the latest Ethereum Wallet version? I have been ...
4
votes
1answer
315 views

mist wallet automatically connects to privatenet instead of testnet

I downloaded the mist wallet for ethereum and when i open up the program it sometimes connects me automatically to the private-net instead of the test-net. In this case i don't know how to change back ...
4
votes
2answers
1k views

how to solve solidity asynchronous Problem

How to deal with asynchronous operation because of the delay blockchain ? How does the blockchain perform under high concurrency? how to deal with the mutually exclusive variable?
2
votes
1answer
247 views

How to fix this problem with Ethereum Wallet in order to convert DAO tokens into ethers using the withdrawal contract after the hard fork?

I am trying to convert The DAO tokens into ethers using the instructions for Ethereum Wallet as outlined in How do I convert my The DAO tokens into ethers using the withdrawal contract after the hard ...
2
votes
1answer
72 views

mist syncing is in discrepancy with node log

I am facing a strange syncing related situation for a couple of hour now (screenshot below makes it easiest to understand). Although my node is in sync with the network as per the node log (...
3
votes
2answers
258 views

host:port for testnet and mainnet

I am testing my Dapp and need host:port for testnet and mainnet. Please can you let me know where can I find these urls? Also, what if the url (host:port) i provide and it goes down?
4
votes
0answers
518 views

Switching to Ropsten on windows

I'm using geth on a linux VM, and Ethereum Wallet on my Windows. I had no problem at all switching to Ropsten on linux, but my Wallet refuses to change. I used geth --datadir /path/to/testnet/data ...
3
votes
1answer
96 views

Ethereum Mist wallet 0.8.0 won't receive any payments anymore

Mist would not receive any payments. I have not updated after 0.8.0. Is the reason because I have not done anything to choose which chain I will use?
-3
votes
1answer
182 views

Why Blockchain if its expensive [closed]

I was made to understand that blockchain indeed is expensive (here) I understand the importance of blockchain, but we have been used to a system where the end user is given less burden to use the ...
3
votes
1answer
403 views

ethereum wallet slowing down entire system (ubuntu 14)

I installed the wallet (0.8.7) on my Mac. Synced within 20 minutes, all good. Trying to do the same on my Ubuntu 14 (on an lenovo x220, with ssd), and it takes ages to sync (not the issue I am ...
3
votes
1answer
3k views

Ethereum private keys

When I go to the key store folder via Mist I find a .json-file (doesn't have a .json extension, but I believe this is still a .json file) that corresponds with my ether address (UTC blablabla). If I'm ...
4
votes
1answer
950 views

How to deploy dependent contracts with Ethereum Wallet

I have two contracts (i.e. contractA, contractB) located in different files (i.e, contractA.sol, contractB.sol) to deploy. The contractB is dependent on contractA. In contractB.sol, import "...
1
vote
1answer
758 views

How to interact with Smart Contract in private network with 3 nodes using Mist?

I'm looking for a method to interact with a smart contract deployed from the official Ethereum wallet. My client is Geth,and I've synchronized 3 nodes. How is possible to recall a simple method of ...
3
votes
0answers
185 views

Ethereum wallet shows “no accounts yet” and 0.00 balance [duplicate]

I last used Ethereum wallet in June or July this year. Yesterday I upgraded on macOS to 0.8.7. It is syncing very slowly; at this rate it will take a week to finish the remaining 189,000 blocks. In ...
5
votes
3answers
143 views

Smallest possible Dapp?

I have a contract with a bunch of functions that don't involve ethers or any kind of funds at all. Basically all I want is to have a html page with forms that allow people to use those functions. All ...
3
votes
1answer
156 views

trying to recover funds from an older ethereum wallet

I downloaded an older version of ethereum wallet in march. and transferred some ether to the account. I have not uploaded in a few months but when i turn on wallet, it refuses to download new blocks. ...
2
votes
0answers
427 views

Ethereum Wallet Will Not Sync

This is a continuation of my first question re: DAO withdraw problems. I'm running EW (latest update) on my MAC. I never connect with more than two peers and my wallet has not synced correctly since ...
2
votes
1answer
111 views

Late to the DAO Withdraw Game

So I'm super late withdrawing the DAO and depositing it in my Ethereum Wallet. I tried to withdraw my DAO on one occasion. I created a DOA Watch Contract and a DAO Withdraw Contract. Nothing happened. ...
1
vote
0answers
60 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 ...
2
votes
1answer
898 views

Ethereum Wallet: error of no key for given address or file

In etherum wallet I am getting an error of no key for given address or file during deployment of the contract. What will be the reason for the same? contract User{ string public userName; ...
1
vote
1answer
40 views

ethereum wallet always loads “private net”

I have been running test with a private net. Now, no matter what I do (including removal of test dir), when I launch the wallet, it always open in Private Net mode. Not sure what I am doing wrong.
2
votes
0answers
77 views

Multiple arguments and return params

Sorry for a newbie question. I'm designing a smart contract wherein I need to send in many( around 50) arguments to a setter method and return a list of same number of arguments in a getter. So ...
1
vote
1answer
118 views

Need help in setting up ethereum blockchain

Sorry for a newbie question. I am learning etheream and would like to know if it's possible to setup ethereum blockchain where tokens represent database records and not currrency for e.g. user ...
2
votes
2answers
5k views

Building Web based UI for Smart Contract

I am struggling to get some tutorial on building web based UI to interact with smart contract. I found examples on using web3 but it uses localhost:8545. However, my understanding is that web based UI ...