Questions tagged [cpp-ethereum]

The Ethereum C++ client.

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Building ethminer on Win7 using CMake & VS2015

I'm trying to build ethminer on a windows box and am Visual Studio 2015 fails. The steps that I take are the following: Download ethminer/cpp-ethereum and install dependencies using the command line ...
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1answer
531 views

ethminer -G Segmentation Fault [duplicate]

I'm having a very weird issue... My rig has 3 RX 480 and it seems unstable as soon as I install the driver. I've tested all OS (windows 8 32 bits, 8.1 64 bits, Windows 10, Ubuntu server) and I'm now ...
2
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3answers
325 views

Is it possible to build stand alone application which can interact with ethereum client and block chain?

I am trying to develop a stand alone application in c++ using the c++ libraries provided for building cpp-ethereum client (http://www.ethdocs.org/en/latest/ethereum-clients/cpp-ethereum/building-from-...
2
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1answer
3k views

Mining Nanopool for 24H with Radeon RX 480 and yet no shares found

I am mining with Ethminer in Nanopool for around 24h (or more) and I still didn't find any shares so my account is not yet created in Nanopool. I think this is not right. I use the miner like this: ...
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2answers
1k views

How can I get MHash value when ethminer doesn't provide one?

In order to set up the ethminer I need the MHash value. I'm testing CPU, so I ran: ethminer -M and I got a weird output: Trial 1... 0 Trial 2... 0 Trial 3... 0 Trial 4... DAG 17:33:59.896|miner0 ...
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2answers
2k views

Eth address can't be used for mining

I'm trying to mine from my linux, but when I run the following command: ethminer -F http://ethereumpool.co/?miner=4@ERroYPhmyUFMgPNRJEDNBlaBlaBla@Optional I get error JSON_PARSE_ERROR: The JSON-...
7
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1answer
7k views

ETH sent to ETC address

I accidentally sent ALL my ETH on ETC address :( 6 months of mining gone :( I sent from one exchange to fresh address on another exchange, but on ETC ... Is there ANY way to track those coins? I'm ...
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0answers
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What do the progress bars on the Alethzero “blockchain download” window mean?

I'm exploring Alethzero. What do the progress bars in the "blockchain download" window mean? I'm seeing this: I'm assuming this relates to the progress in dowloading the blockchain but I can't work ...
2
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1answer
575 views

How can I get eth console?

I'm new to ethereum. I downloaded eth, geth, and mix from https://www.ethereum.org/cli, but I can't find ethconsole.exe file in the zip file. The only executable in the zip file is eth.exe. I tried '...
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1answer
1k views

Create a new contract by JSON-RPC of cpp-ethereum

I want to create a new contract by JSON-RPC and cpp-ethereum. I find out eth_sendTransaction can help me to do this. And let do it, I need to set "to" parameter like that: to: DATA, 20 Bytes - (...
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1answer
503 views

I can I restore Mist to reset master password?

I lost my Ethereum Wallet master password. I have all my account passwords. I've backed up my wallet, and application data. How do I restore Mist to create a new master password? How do I back up the ...
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1answer
196 views

The “why” of immutable contracts [duplicate]

I'm new to blockchain technologies and I'm trying to grasp the "why" and the real "value" of immutable contracts. In software engineering is pretty much accepted that no piece of logic is ever ...
2
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2answers
399 views

Why immutable contracts [closed]

I'm a seasoned engineer, but quite new to blockchain technologies. I'm trying to grasp the "why" and the real "value" of immutable contracts. Never seen or heard of pieces of software being ...
3
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1answer
777 views

Geth and qtminer: 0 balance after 2 days with 3.2MH/s

I'm using Geth + QtMiner: qtminer.exe -s asia1.ethpool.org:3333 -u 0x37830e9f76198f82cdb81821a7a380c82e24b4f9.maplerichie -G --opencl-platform 1 My average hashrate is just around 3.2MH/s but ...
2
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0answers
52 views

How to clear Ethereum chain data on windows? [duplicate]

I'm using the ethereum wallet, which uses geth. I keep getting the time out of sync error message. I know i need to clear my bad chaindata. How do i do this?
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4answers
17k views

ethminer Failed to submit hashrate

I keep getting an error: ethminer Failed to submit hashrate :( I am very new to this whole mining thing, and just want to learn more. I am using: Geth Version: 1.5.0-unstable ethminer version 1.2.7 ...
2
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1answer
52 views

Deploying Network; Using Different PC for different user

I am using MIX IDE in Windows. I have created a new smart contract in Contract.sol, I have 4 Pages of html and there are 4 users. Each html page is controlled by each user. The pages are also ...
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1answer
367 views

Error installing cpp-ethereum in homebrew

I am getting this error when attempting to install cpp-ethereum in homebrew. Not sure where to begin...please help! /Users/Macbook/projects/ethereum ==> brew install cpp-ethereum ==> Installing ...
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1answer
36 views

How to save/reload the fake blockchain in Mix

I'd like to save the state of the fake blockchain and to reload it on Mix startup. Any hints?
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0answers
68 views

Fail writing to state database. Bombing out [closed]

Problems updating state on C++ ethereum on Ubuntu Linux 14.04 disks, /tmp have plenty of space. eth was installed from ethereum ppa, is used intermittently to check balances and do transfers (...
2
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1answer
2k views

How to compile qtminer on linux?

Etherchain provides the source code of the qtminer on github. However, no build instructions and no build helpers are provided. Does anyone have any idea how to compile qtminer on linux? What are the ...
3
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1answer
2k views

How to run my own full node pool? (error: unexpected identifier)

When I run this geth with the following parameters: geth --rpc --rpcaddr "my ip" --rpcport 8545 I get an error like: (anonymous): Line 1:13 Unexpected identifier (and 1 more errors) Please help.
6
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1answer
857 views

Unable to send raw transaction

i'm working on to the morden testnet and using a nodejs application i wrote (using ethereumjs-util, ethereumjs-tx) i'm trying to push a raw tx on to the testnet. I've tested GETH "eth....
6
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1answer
261 views

How to implement Ethereum protocol to some tinyOS, e.g, contiki?

I find out Ethereum has many implements to many OS with many different languages. But i don't know if I want to use ethereum as protocol on contiki OS or cooja simulation, so what is the best choice ...
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1answer
92 views

Strange popup window trying to send ether when I run aleth zero. What should I do?

I ran aleth zero and mined with aleth one a while back. I had mined some ether from a mining pool. Now when I run aleth zero (updated client for windows), I get an annoying and unstoppable pop up ...
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3answers
994 views

How to build C++ Ethereum without GUI/Qt?

I want to have a clean install of the turbo ethereum C++ clients and command line tools without any GUI dependencies (Qt, etc.) - How to build C++ Ethereum without GUI/Qt? I see AlethZero and ...
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0answers
320 views

How can I install Ethereum on the Windows 10 Ubuntu Bash

Windows 10 new preview release includes the Ubuntu Bash. I would like to know if anybody has had some luck installing ethereum using the bash, and can provide details instructions. apt-get install ...
3
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1answer
678 views

ethminer || Segmentation fault: 11 [duplicate]

I recently updated cpp-ethereum. I am now on ethminer version 1.2.3 when I start it to mine with ethminer --opencl-device 1 I get the folowing output. Getting work package... Segmentation fault: 11 ...
4
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1answer
257 views

Stuck in sync process

Node type: geth/eth OS: windows 64 bit Network type: main Mist version: 0.4.0 (trying to update to 0.5.2) The problem is my mist wallet wont sync, i have taked a screenshot of Geth running and mist, ...
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0answers
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How can I go about switching from eth to geth while keeping my same accounts? [duplicate]

I'd like to move my accounts from the eth client to geth. Also, I'd like to keep the same addresses. Is this possible?
2
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1answer
314 views

cpp-ethereum (Homestead) starts resyncing blockchain

I just installed cpp-ethereum 1.2.2 in order to upgrade to Homestead. When eth is started it begins to re-sync the blockchain from block 1, while the whole blockchain is already on my machine. Is ...
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3answers
5k views

CPU mining JSON_PARSE_ERROR

I just wanted to mine ETH with my CPU. I use Windows 7 64 Bit with ethminer. I started the cpu miner with a batch ethminer -t 6 -C -F http://ethereumpool.co/?miner=5@0x17C0Bea7c44*******...
8
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3answers
4k views

Mining ETH on HD 6950 DAG allocation problem

I have 2 HD6950's which I wanted to use for ETH mining - but I have the well known DAG allocation problem. I can't find a solution for this problem - that's why I'm asking here. And please don't tell ...
2
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1answer
879 views

Have key store file and password - how can I access my ETH without Mist/Geth

Maybe a Noob question. I have the text file from the keystore folder. I have the password. How can I access my funds without using Mist/Geth? These are not working on my computer. Is there an online ...
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0answers
85 views

Cannot enter commands into eth 1.2.1 on Windows

When I enter eth console I get this back and am not given a prompt back to give any commands. Also when I go to enter the password, it does not give me a prompt, but typing in my password and hitting ...
4
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3answers
1k views

Is there a way to transfer my ETH from a cold storage to a hot storage without compromising it?

At first I wanted to use myetherwallet.com but now I am afraid the code may be hacked / corrupted some day. The cold storage solution seems safer to store ETH in the long run. While I understand how ...
7
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1answer
3k views

Is there a downloadable Ethereum bootstrap?

I am trying to synchronize a full node, and this is going very slowly, the progress alternates between bursts of high CPU usage (which is fine, it is heavy but importing), and long times with nothing ...
4
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1answer
224 views

Alethzero QOpenGLWidget issue

I have downloaded and built the latest alethzero client. I have Qt5.5 installed. Running on Ubuntu 14.04 qt.network.ssl: QSslSocket: cannot resolve SSLv2_client_method qt.network.ssl: QSslSocket: ...
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2answers
2k views

Why did the DAG file change in block 1080000?

I'm mining to dwarfpool, and all of sudden am getting this message on the account: "DAG file changed in block 1080000" Does this mean that my DAG is out of sync and if yes, how do I resync it, tried ...
3
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1answer
140 views

What is pendingtotal and nicependingtotal in cpp-ethereum?

If I enter > web3.admin.eth.allAccounts() in my eth client I get the following answer after it lists my accounts: }, nicependingtotal: '21.173 ether', nicetotal: '16.168 ether', ...
2
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2answers
659 views

Can't enter any commands after starting eth on Windows

I'm running the eth client (0.9.41) on Windows 10 using the following command: eth --frontier -b -i as stated here. The program hangs and I'm not able to enter any commands. The last produced ...
2
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0answers
388 views

How to initialize private blockchain using flu?

I get the following error when trying to initialize a private bockchain using flu: $ sudo flu console --config ~/ppaconfig.json flu Hinted genesis block's state root hash is incorrect! flu Hinted #...
3
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1answer
141 views

is the code for the ETH contract available?

As the initial ETH coins were minted and not mined, the contract which was used must exist somewhere. It would be very interesting to study this contract in order to verify how new ETH can be minted....
3
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1answer
1k views

What's the difference between eth and cpp-ethereum?

In Ubuntu, what's the difference between apt-get install eth vs. apt-get install cpp-ethereum? They both seem to install the same packages but seemingly not the same versions.
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1answer
194 views

Is there a loadscript equivalent in eth?

I got this error in eth client : Error: Uncaught ReferenceError: loadscript is not defined is there a loadscript equivalent command in the cpp client eth?
4
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1answer
524 views

Does Eth have an equivalent to Geth's --fast flag?

In a previous question, I asked how Geth's --fast flag worked. I'm now moving over to using Eth, so my question is: is there an equivalent option to allow Eth to quickly sync the block data? If so, ...
2
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0answers
19 views

Block data duplication when moving from Geth to Eth (or vice versa) [duplicate]

I've so far been using Geth (the Go client) as my client of choice. I'm now interested in using the Mix IDE, a requirement of which is that I use Eth (the C++ client) instead. I've already synced the ...
4
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1answer
4k views

How can I import geth accounts into eth?

I had two accounts under ~/.ethereum/keystore when I used geth a while ago. I got a new PC, recompiled only the C++ version and I can't see my two accounts in eth. web3.admin.eth.allAccounts() ...
6
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2answers
9k views

How to install eth on debian? (symbol lookup error)

I installed from the ubuntu ppa and got this error. ➜ ~ eth eth: symbol lookup error: eth: undefined symbol: _ZN3dev3eth14EthashGPUMiner14s_numInstancesE What can I do / check? I'm on debian ...
2
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1answer
297 views

How to control which client mist is using as blockchain backend?

Whenever I run mist without any client, it launches a geth node in the background, connects to the network and syncs the blockchain. If I have a geth node running and start mist, it detects the ...