Most answered questions in Blockchain

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Truffle compile compilation failed

This is a version compatibility problem. In ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 3,402 views
–1 vote
1 answer

Not able to compile truffle project

Hi. If you look at the error ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 1,627 views
–1 vote
1 answer

Not able to install truffle

I know this is very frustrating, I ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 3,665 views
–1 vote
1 answer

Miner in Ethereum Private network is hanging

Looking at your commands again, I figured ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 1,581 views
–1 vote
1 answer

Not able to create new account in geth for private ethereum blockchain

personal.newAccount() is not a default geth method. This ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 3,396 views
–1 vote
1 answer

Not able to use geth attach

You are getting this error because you ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 4,975 views
–1 vote
1 answer

geth attach Fatal: Unable to attach to remote geth: no known transport for URL scheme "c"

Seems like geth.ipc path is not set. When ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 1,813 views
–1 vote
1 answer

How to get pending transaction in geth?

You can check the pending transactions using ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 3,589 views
–1 vote
1 answer

Geth miner not working

Hi. miner.start() gives no output. So, when the output ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 2,276 views
–1 vote
1 answer

setEtherbase() not working in geth

setEtherbase() is not a method of the personal ...READ MORE

Jan 17, 2019 in Blockchain by Omkar
 • 69,210 points • 1,288 views
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1 answer

geth attach command showing error: bind: address already in use

Seems like there is already a geth instance ...READ MORE

Jan 16, 2019 in Blockchain by Omkar
 • 69,210 points • 2,305 views
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1 answer

Not able to connect to Ethereum node in web browser

By default, geth listens only to localhost. ...READ MORE

Jan 16, 2019 in Blockchain by Omkar
 • 69,210 points • 1,705 views
0 votes
1 answer

How to sync private nodes in geth and testRPC locally?

HI. As much as I know, running ...READ MORE

Jan 16, 2019 in Blockchain by Omkar
 • 69,210 points • 1,068 views
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1 answer

geth personal.newAccount() shows password error

You have to pass the password as ...READ MORE

Jan 16, 2019 in Blockchain by Omkar
 • 69,210 points • 776 views
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1 answer

Why to use libraries over Json-RPC to interact with Blockchain?

Though Json-RPC provides methods to interact with ...READ MORE

Jan 11, 2019 in Blockchain by Omkar
 • 69,210 points • 528 views
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1 answer

How to interact with blockchain from web application?

You can use the Web3.js library to interact ...READ MORE

Jan 11, 2019 in Blockchain by Omkar
 • 69,210 points • 1,112 views
–1 vote
1 answer

How to add a static node to private ethereum network?

There are two ways to do this. 1. Configuring ...READ MORE

Jan 11, 2019 in Blockchain by Omkar
 • 69,210 points • 1,618 views
0 votes
1 answer

Why is geth --fast faster in downloading the Blockchain?

When you use the --fast flag to download the Blockchain, ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 904 views
0 votes
1 answer

How to get Node URL in private ethereum network?

You have already noticed that  admin.peers does ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 1,539 views
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1 answer

admin.peer not working

There is a typo in your command. ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 423 views
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1 answer

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

To get these details, you can use ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 2,843 views
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1 answer

How to check peer connectivity in ethereum private network?

You can use the net module to check the ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 1,331 views
–1 vote
1 answer

How to get balance of all accounts in ethereum network using javascript?

You can write a function that will ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 2,168 views
–1 vote
1 answer

How to list ethereum accounts in RPC?

You can use the following command to ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 1,259 views
–1 vote
1 answer

How to connect two different nodes in private ethereum network?

To connect two nodes, you can use ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 2,651 views
–1 vote
1 answer

How to change default account in private ethereum network?

First list the accounts: > eth.accounts NOTE: Even ...READ MORE

Jan 10, 2019 in Blockchain by Omkar
 • 69,210 points • 1,644 views
–1 vote
1 answer

How to import an account in private ethereum network?

 When you create a new account, the ...READ MORE

Jan 9, 2019 in Blockchain by Omkar
 • 69,210 points • 1,380 views
0 votes
1 answer

How to check ethereum logs?

Hey there! You don't have a Verbose ...READ MORE

Jan 9, 2019 in Blockchain by Omkar
 • 69,210 points • 9,259 views
0 votes
1 answer

Not able to send ethers in private ethereum network

Your account is locked by default due ...READ MORE

Jan 9, 2019 in Blockchain by Omkar
 • 69,210 points • 873 views
0 votes
1 answer

How to set miner threads outside geth console?

Yes, you can set the miner threads ...READ MORE

Jan 9, 2019 in Blockchain by Omkar
 • 69,210 points • 1,158 views
0 votes
1 answer

How to get account with ethers by default in ethereum private network?

Have you created an account before allocating ...READ MORE

Jan 9, 2019 in Blockchain by Omkar
 • 69,210 points • 1,509 views
0 votes
1 answer

Not able to unbox truffle drizzle

It could be due to a broken ...READ MORE

Jan 9, 2019 in Blockchain by Omkar
 • 69,210 points • 1,396 views
–1 vote
1 answer

Latest block number in Bitcoin

You can get the current block number ...READ MORE

Jan 7, 2019 in Blockchain by Omkar
 • 69,210 points • 514 views
0 votes
1 answer

Bitminter shows no progress but my system heated up and shutdown

After initialization of bitminter you won't be ...READ MORE

Jan 3, 2019 in Blockchain by Omkar
 • 69,210 points • 800 views
0 votes
1 answer

Not able to pull any events in ethereum

You need to catch the even emitted ...READ MORE

Dec 31, 2018 in Blockchain by Omkar
 • 69,210 points • 356 views
0 votes
1 answer

Ethereum contract hangs on AWS

Please check the memory consumption for docker ...READ MORE

Dec 31, 2018 in Blockchain by Omkar
 • 69,210 points • 466 views
0 votes
1 answer

When I create public getters (committed code), my contract exceeds code size limit

Are you pushing info one by one ...READ MORE

Dec 31, 2018 in Blockchain by Omkar
 • 69,210 points • 346 views
–1 vote
1 answer

User Identity Management in Ethereum using ERC725

The identity consists of two main parts: Keys ...READ MORE

Dec 28, 2018 in Blockchain by Omkar
 • 69,210 points • 1,771 views
–1 vote
1 answer

User Identity management on Ethereum Blockchain

User Identity management can be done via ERC725 ...READ MORE

Dec 28, 2018 in Blockchain by Omkar
 • 69,210 points • 1,259 views
–1 vote
1 answer

Unable to create account in geth

Well, that's not how you create a ...READ MORE

Dec 28, 2018 in Blockchain by Omkar
 • 69,210 points • 563 views
0 votes
1 answer

Not able to install Multichain

Hi. It seems you have changed some ...READ MORE

Dec 28, 2018 in Blockchain by Omkar
 • 69,210 points • 464 views
0 votes
1 answer

HyperLedger Fabric and Multichain - difference & different use cases

MULTICHAIN: It is a Permissioned Blockchain. It doesn't implement ...READ MORE

Dec 28, 2018 in Blockchain by Omkar
 • 69,210 points • 2,921 views
0 votes
1 answer

Solidity error: SyntaxError: No visibility specified.

As mentioned in the error, you have ...READ MORE

Dec 12, 2018 in Blockchain by Omkar
 • 69,210 points • 6,863 views
0 votes
1 answer

How to print a message in Solidity??

You can use the require function to do this. ...READ MORE

Dec 12, 2018 in Blockchain by Omkar
 • 69,210 points • 15,367 views
0 votes
1 answer

Cant set Remix IDE to work on testrpc

As I can see that you are ...READ MORE

Dec 11, 2018 in Blockchain by Omkar
 • 69,210 points • 598 views
0 votes
1 answer

truffle create contract shows no network available error

In your truffle project directory, you have ...READ MORE

Dec 11, 2018 in Blockchain by Omkar
 • 69,210 points • 891 views
0 votes
1 answer

How to create a contract in truffle?

The command you are using to create ...READ MORE

Dec 11, 2018 in Blockchain by Omkar
 • 69,210 points • 1,358 views
0 votes
1 answer

Not able to create contracts in truffle

It seems like you have files missing that ...READ MORE

Dec 11, 2018 in Blockchain by Omkar
 • 69,210 points • 563 views
0 votes
1 answer

Not able to migrate truffle project even after running testrpc

Maybe you forgot to compile the project ...READ MORE

Dec 11, 2018 in Blockchain by Omkar
 • 69,210 points • 620 views
0 votes
1 answer

Truffle migrate: Error: You must specify a network_id in your 'development' configuration in order to use this network.

You have to mention the network id ...READ MORE

Dec 11, 2018 in Blockchain by Omkar
 • 69,210 points • 7,550 views
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