Linked Questions

1
vote
1answer
137 views

Can't fix the “block gas limit” error for the greeter example.

I'm trying to build my first smart contract. I'm trying to do the example here https://www.ethereum.org/greeter. So it seems that this example is so out of date it doesn't work at all. I've been ...
2
votes
2answers
2k views

How to deploy compiled contract file using the geth cli?

So I've followed the greeter contract tutorial from here to deploy a contract to my private cloud. It works fine and all, but it is rather difficult that I need to create a string from my contract and ...
5
votes
1answer
227 views

web3.eth.compile.solidity(source) throws me Invalid JSON RPC response

I am relatively new to Blockchains and when I execute the following command I am getting an error. contract mortal { address owner; function mortal() { owner = msg.sender; } ...
1
vote
2answers
92 views

Greeter Contract - deploy command results in “undefined” [duplicate]

I am trying to deploy the Greeter contract on a private test chain following this guide (Deploying the Greeter contract via the geth CLI is not registering in my private blockchain) When I get to the ...
5
votes
3answers
889 views

Do I need to be synced to the blockchain to create a contract?

I haven't been able to run the Greeter contract on the live network and am referring to these excellent Q&As for guidance. I have a feeling that it's because my client hasn't finished syncing with ...
26
votes
6answers
15k views

How to compile Solidity contracts with Geth v1.6?

I tried to compile the following contract within geth: pragma solidity ^0.4.8; contract Test { uint256 public value; function Test() { value = 123; } } using the following ...
5
votes
3answers
4k views

How to execute Smart contracts on a private Blockchain network

I have created a private Blockchain network on my Windows system with one node. I have created accounts and was able to transfer ethers across them. Now I want to deploy smart contracts on this ...
9
votes
2answers
2k views

Unable to define greeterContract in the Greeter tutorial. Breaking change in Solidity 0.4.9!

I was following the Greeter tutorial on Go Ethereum wiki and got stuck on the "var greeterContract = web3.eth.contract(greeterCompiled.greeter.info.abiDefinition)" phase returning TypeError: Cannot ...
2
votes
1answer
607 views

Calling a smart contract in response to an external event

I am trying to log all access operations on a file storage in Ethereum. The access operations are read, write, update and delete. Every time, a user does any of these operations on the file storage, I ...
5
votes
1answer
3k views

Deploying Smart Contract into Ethereum testnet

I have followed this guide https://ethereum.stackexchange.com/a/2787/2426 (or equivalently https://www.ethereum.org/greeter ) when trying to deploy a simple Smart Contract into Ethereum testnet. I am ...
0
votes
1answer
60 views

How do miners work in private network? What is their importance?

I'm a newbie to the blockchain technology and working on the smart contracts using Ethereum. Help me understand the concept of miner in this technology. I have followed the steps given on https://...
1
vote
0answers
22 views

Ethereum Contract Deployment [duplicate]

var greeterContract = web3.eth.contract(greeterCompiled.greeter.info.abiDefinition); I am getting this type of error on geth console: TypeError:Cannot access member 'info' of undefined at :1:41 I ...
3
votes
1answer
422 views

Gas not enough and not able to run functions

I am a new comer to the Ethereum and I am writing a piece of smart contract for my project. I used Win 10 and Mist 0.8.8 with the testnet that started with "R". The contract code has the functions of ...
5
votes
1answer
586 views

After loading the solidity script, i get null [object Object]. What should i do?

I wrote a contract greeter and mortal, they are as follows: contract mortal { address owner; function mortal() { owner = msg.sender; } function kill() { if (msg.sender == owner) ...
7
votes
1answer
1k views

How to call Library Function from a Contract? => [error] The contract code couldn't be stored, please check your gas amount. undefined

When I compiled following code at "https://ethereum.github.io/browser-solidity/" it gives me two Web3 deploy code for: var libraryContract = web3.eth.contract(...); //Web3 deploy code var ...

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