Trending questions in Blockchain

0 votes
1 answer

Blockchain validation

Hey, @Rohan, Every node in the Bitcoin network ...READ MORE

Apr 20, 2020 in Blockchain by Gitika
 • 65,730 points • 842 views
0 votes
1 answer

How to get IP address of peer connected in private ethereum network?

Could you share what you have done ...READ MORE

Mar 24, 2021 in Blockchain by Arafat
edited Mar 5 • 3,501 views
+1 vote
2 answers

Error 500: mychannel has been migrated to new lifecycle. Chaincode instantiation error.

This error occured only because I had ...READ MORE

Jan 9, 2020 in Blockchain by Aditya
 • 250 points • 4,973 views
0 votes
0 answers

how can i add more than one node to mining blocks ??

i created 6 nodes whit one node ...READ MORE

Apr 12, 2020 in Blockchain by Hicham
 • 120 points • 810 views
–1 vote
2 answers

Truffle migrate not deploying contract.

truffle migrate --reset READ MORE

May 12, 2020 in Blockchain by Jason Romero
 • 9,630 views
0 votes
0 answers

How I can connect multiple physical machine with hyperledger fabric??

I want to connect my 3 computers ...READ MORE

Mar 12, 2020 in Blockchain by Md
 • 120 points • 1,585 views
+1 vote
1 answer

how to create a voting Dapp ?!

If you want to create your own ...READ MORE

Aug 3, 2020 in Blockchain by moshbhavika
 • 140 points • 1,758 views
+1 vote
4 answers

How to connect peers to a private network using geth?

Follow the below steps to connect peers ...READ MORE

Jul 13, 2018 in Blockchain by slayer
 • 29,370 points • 15,193 views
0 votes
0 answers

modify both abac.go and abac_test.go by adding entity called 'C' to the existing flow and allow for a transaction between A->C and A->B

I need to add another entity in ...READ MORE

Mar 23, 2020 in Blockchain by utthara
 • 120 points • 1,017 views
0 votes
0 answers

Is there any resource for hyper ledger fabric to learn?

Hi, I have searched all the google sites, ...READ MORE

Mar 2, 2020 in Blockchain by anonymous
 • 120 points • 1,293 views
0 votes
0 answers

Low_s canonical signature for bitcoin transaction

I have a transaction script and trying ...READ MORE

Mar 3, 2020 in Blockchain by anonymous
 • 120 points • 1,166 views
0 votes
0 answers

Hyperledger Fabric: Average & Max Price FabCar

Hey, I'm using the fabcar project  (https://github.com/IBM/blockchain-application-using-fabric-java-sdk). I ...READ MORE

Mar 1, 2020 in Blockchain by pablobonet
 • 120 points • 904 views
0 votes
0 answers

Solidity: How i can return data from hash value ?

I have a solidity contract with two ...READ MORE

Feb 14, 2020 in Blockchain by simone
 • 120 points • 1,418 views
0 votes
1 answer

How to install Ganache in Windows?

First, we need to install nodejs. Go ...READ MORE

Feb 28, 2019 in Blockchain by Rishi
 • 16,450 views
0 votes
4 answers

Cannot find module 'fabric-network' - is my application installation done wrong?

First, install grpc and run it: $ npm ...READ MORE

May 20, 2019 in Blockchain by John
 • 5,713 views
–1 vote
1 answer

how to npm install in node.js

This blog has a detailed step-wise explanation ...READ MORE

Mar 13, 2020 in Blockchain by Sirajul
 • 59,190 points • 1,051 views
+1 vote
1 answer

How I can Develope a chaincode for generating network admins private and public key using certification authority for each organisation and Is it possible?

You can follow the steps provided in ...READ MORE

Feb 13, 2020 in Blockchain by Edureka
 • 140 points • 1,290 views
0 votes
2 answers

web3 accounts coming undefined

Try this :  web3.eth.getAccounts() READ MORE

Jul 23, 2020 in Blockchain by Manas
 • 150 points • 2,496 views
+1 vote
0 answers

Error 500 during instantiation of chaincode for commercial-paper example.

I have been successfully able to cover ...READ MORE

Jan 9, 2020 in Blockchain by Aditya
 • 250 points
reopened Nov 12, 2024 by Neelam • 2,090 views
+1 vote
1 answer

how to creat a privaet blockchain network using ganache step by step process

This might help, check it out https://www.codementor.io/@swader/de ...READ MORE

Jan 13, 2020 in Blockchain by Rhea
 • 1,810 views
+2 votes
5 answers

How to install Ganache.appx on Windows 7

Go to https://github.com/trufflesuite/ganache/releases there are a set of ...READ MORE

Aug 17, 2018 in Blockchain by Omkar
 • 69,180 points • 15,641 views
0 votes
1 answer

When running the enrollAdmin.js i get this error:

you are not running the ca, port ...READ MORE

Jun 7, 2020 in Blockchain by sumit
 • 4,079 views
+1 vote
0 answers

How can i made a ledger-system using hyperledger.

Jan 12, 2020 in Blockchain by anonymous
 • 190 points • 1,016 views
+1 vote
1 answer

I have a doubt regarding the installation of Go Lang on my Linux system.

Hi @vt. This command should do the job: apt ...READ MORE

Jan 2, 2020 in Blockchain by Kalgi
 • 52,340 points • 1,211 views
0 votes
1 answer

'env' is not recognized as an internal or external command

According to the error, it seems like ...READ MORE

Jan 23, 2019 in Blockchain by Omkar
 • 69,180 points • 15,779 views
+2 votes
0 answers

Doubt regarding Initialising a Blockchain [closed]

Whenever Iam trying to run the command: /home/vashist/go-ethereum/build/bin/geth ...READ MORE

Jan 5, 2020 in Blockchain by vt
 • 210 points
closed Jan 6, 2020 by Kalgi • 711 views
+1 vote
0 answers

Is it possible for Chainlink to come off Ethereum and go onto another platform lke NEO or Stellar? Or would it require the entire blockchain be rebuilt onto the new platform?

I'm just trying to understand this whole ...READ MORE

Dec 27, 2019 in Blockchain by finnius
 • 130 points • 894 views
0 votes
2 answers

Truffle console error: Could not find suitable configuration file

First, initialize truffle project by running: $ truffle ...READ MORE

Feb 19, 2019 in Blockchain by John
 • 14,618 views
0 votes
1 answer

how to connect a web browser with the hyperledger fabric running blockchain peer container please give answers with step by step commands

Hello, It is not possible to connect a ...READ MORE

May 26, 2020 in Blockchain by anonymous
 • 1,517 views
+2 votes
4 answers

"failed to create new connection context deadline exceeded." error in Hyperledger Fabric

Try remove previous docker containers(have mentioned the ...READ MORE

Apr 24, 2019 in Blockchain by Kiran
 • 13,848 views
0 votes
0 answers

i am new to hperledger fabric in the offical docs they relased 2.0 version i am geeting error related to tls handshake

when i create channel it showing error READ MORE

Dec 11, 2019 in Blockchain by vineeth
 • 150 points • 781 views
+1 vote
1 answer

Error: failed to create deliver client: orderer client failed to connect to order.example.com:7050: failed to create new connection: context deadline exceeded

I am facing the some problem in ...READ MORE

Dec 14, 2019 in Blockchain by xyz
 • 210 points • 4,816 views
0 votes
1 answer

How do I get the balance of an account in Ethereum?

On the Web: (Not programmatic, but for completeness...) ...READ MORE

Nov 15, 2018 in Blockchain by Perry
 • 17,100 points • 17,627 views
+1 vote
2 answers

how to fetch data from excel (which has some 100 data)or csv file and use that bulk data in smart contract and validate

You can not directly import an excel/csv ...READ MORE

Oct 30, 2019 in Blockchain by Tina
 • 2,164 views
0 votes
1 answer

How to fix "failed to execute script docker compose" error on windows 7?

It seems like the container is not ...READ MORE

Jun 27, 2018 in Blockchain by Omkar
 • 69,180 points • 23,091 views
+1 vote
0 answers

I need to get throughput requirment is BlockSize 10, Transaction 200, transaction type Insert, Arrival Rates 2 to 25 tps

I am not getting ans, even I ...READ MORE

Nov 29, 2019 in Blockchain by Sudhanshu
 • 130 points • 613 views
+1 vote
4 answers

Hyperledger: Cannot compile chaincode, cannot find package error

As the error says, it cant find ...READ MORE

Oct 26, 2018 in Blockchain by Omkar
 • 69,180 points • 13,504 views
0 votes
4 answers

How to solve “bind: cannot assign requested address” Error?

You must mention in your host.conf file ...READ MORE

Jul 31, 2018 in Blockchain by slayer
 • 29,370 points • 15,323 views
+1 vote
0 answers

not getting real transaction ID only getting temp-transaction ID in fabric-sdk

I am using below code for submitting ...READ MORE

Nov 14, 2019 in Blockchain by laxman
 • 130 points • 971 views
+1 vote
0 answers

creation of channel

I am facing in creation channel, please ...READ MORE

Nov 12, 2019 in Blockchain by anonymous
 • 210 points • 956 views
0 votes
2 answers

Hyperledger: ./byfn.sh -m up gives error

just follow those steps: docker ps -aq ...READ MORE

Oct 21, 2020 in Blockchain by anonymous
 • 1,491 views
+1 vote
1 answer

Error while sending a transaction from Web3py to a Smart Contract in Remix

You get the revert error when a ...READ MORE

Dec 12, 2019 in Blockchain by Vivek
 • 2,087 views
0 votes
3 answers

Truffle migrate Could not connect to your Ethereum client.

As mentioned in the previous answer, you ...READ MORE

Feb 19, 2019 in Blockchain by Dinesh
 • 12,280 views
+2 votes
3 answers

Hyperledger Fabric: Not able to create the channel "Channel creation failed" error

Seems like you have not set the ...READ MORE

Nov 2, 2018 in Blockchain by Omkar
 • 69,180 points • 8,434 views
+1 vote
3 answers

Pass parameter as bytes32 to Solidity Smart Contract

Use the common.HexToHash package and pass the string ...READ MORE

Sep 19, 2019 in Blockchain by Grashias
edited Sep 19, 2019 by Omkar • 10,285 views
+1 vote
2 answers

I get the following error while i run the command ./byfn.sh up. I have tried removing all the containers and updated every required version but still the same error

Not sure if this is still relevant ...READ MORE

Aug 22, 2019 in Blockchain by Shailaja
 • 160 points • 5,050 views
+1 vote
4 answers

How to estimate the cost for deploying smart contract on mainnet?

Since you have already deployed the contract ...READ MORE

Apr 10, 2018 in Blockchain by Shashank
 • 10,400 points • 16,704 views
+1 vote
0 answers

How can i can create different cards upon signup and also how can we manage them while login, in hyperledger composer?

Oct 14, 2019 in Blockchain by Vishnu
 • 130 points • 1,070 views
+2 votes
1 answer

how to convert hash160 to bitcoin address in python?

Hey @Raj. I use the following script. ...READ MORE

Jul 12, 2019 in Blockchain by Tanisha
 • 4,232 views
+1 vote
4 answers

Uncaught Error: Returned values aren't valid, did it run Out of Gas?

Could be due to previously set values. ...READ MORE

Jan 31, 2019 in Blockchain by Omkar
 • 69,180 points • 9,048 views
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