Questions tagged [ganache]

For questions about using the Ganache personal blockchain testing environment.

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16
votes
1answer
7k views

Member function “transfer” not found or not visible after argument-dependent lookup in contract?

I am having a problem with my smart contract making value transfers. My current environment: Truffle v5.0.0-beta.2 (core: 5.0.0-beta.2) Solidity v0.5.0 (solc-js) Node v8.11.1 I created the ...
5
votes
2answers
2k views

Solidity Exceeds block gas limit during Mocha Tests with Ganache-cli

How can I increase the gas limit in this case? The error message is "n: Exceeds block gas limit" or "base fee exceeds gas limit". I think there is some kind of api I need to set the block gas limit ...
1
vote
2answers
1k views

Is it possible to run multiple Ganache nodes for private test network?

I wonder if i can create my own private cluster as it can be done with Geth for development & test purposes : https://github.com/ethereum/go-ethereum/wiki/Setting-up-private-network-or-local-...
1
vote
2answers
387 views

How do I implement simple JS code to deploy a compiled smart contract to ganache-cli? [closed]

Everything I've tried results in strange errors, and it's been difficult to get this working. I've been struggling with this for a while, especially having problems determining which versions of web3 ...
0
votes
2answers
464 views

Solc error invalid opcode, but works in truffle

I am trying to compile solidity code in solc(nodejs) but unsuccessful so far. I have created a sample app for demo. Here is sample's directory structure (node.js and truffle combined): │ app.js │ ...
4
votes
4answers
476 views

Truffle Drizzle-box fails with TypeError: (0 , _drizzle.generateContractsInitialState) is not a function

Right after unboxing Drizzle-box I'm getting a TypeError: (0 , _drizzle.generateContractsInitialState) is not a function. Ganache is running on localhost:8545, contracts are deployed, Metamask ...
1
vote
3answers
273 views

Increase block number on Ganache

How can we increase block.number on Ganache for testing purpose ? If not possible do you know an alternative like passing X fake transactions to artificially increase block.number. Or if we have to ...
6
votes
1answer
817 views

Is there a maximum number of public functions in a contract?

I have two contracts A and B, both deploy and work correctly in ganache (they both use less than 6M gas). Now I want to create a third contract C that inherit both A and B. contract C is A, B { } ...
4
votes
1answer
310 views

Remix + Ganache - Cannot call one contract from another

I have an innocent looking contracts that work painlessly in Remix. Test contract can easily call Another if I use JavaScript VM in Remix. I also have ganache-cli running on port 7454. If I connect ...
3
votes
0answers
287 views

How to Catch Connection Issues to Web3 Provider using Web3.js

My node.js script is able to successfully connect to the Web3 provider when both the private key (using truffle-privatekey-provider) and the provider host URL are correct. let privateKey = ..., ...
2
votes
1answer
69 views

Oraclize a restfullAPI using a specific number represented by the variable z

Hello I made a restfull API on my own (python file jsonify + localtunnel) on a localhost using a specific number (in this case 141) represented by the variable z. This variable should go into DevCoin ...
2
votes
1answer
118 views

Is it possible that Ganache can handle a private key without an “0x” prefix, but Parity cannot?

I am trying to sign and send a transaction as follows: let signedTx = await web3.eth.accounts.signTransaction(options, PRIVATE_KEY); let txReceipt = await web3.eth.sendSignedTransaction(signedTx....
2
votes
1answer
2k views

How to get private keys on Truffle from Ganache accounts

Doing some ERC-735 tests on truffle+ganache I got stuck when creating claim signatures. They need to be signed from my ganache account, but I don't know its private key. The code to be used is this: ...
1
vote
1answer
838 views

JSONRPC error on sendSignedTransaction

I run ganache, truffle and metmask. If I run the code below I get an error on the this.web3.eth.sendSignedTransaction() function: EDIT: changed my code to the following.. Error remained the same ...
0
votes
0answers
398 views

web3.eth.getAccounts() returns empty array

I'm trying to get accounts like that: window.web3.eth.getAccounts( (error, accounts) => { console.log(accounts, error) } ); but it keeps returning an empty array. I'm running Ganache and I can ...
1
vote
0answers
86 views

Ganache is not showing any events

I have a contract method which emits events but ganache seems not to catch any events. I say this because when I deploy my contract on ropsten the events are being caught fine but only in ganache I ...
1
vote
1answer
24 views

TxPool on Ganache

I started using Ganache to run Ethereum and tried via cURL the following: curl -X POST -d '{"jsonrpc":"2.0","method":"txpool_status","params":[],"id":1}' http://ip:port But I got the message: ...
1
vote
0answers
280 views

Mocha timeout, not resolving promise of large array from method.mymethod.call()

I'm trying to test a contract getter method that returns a large array. I am testing using the web3 library in Mocha with ganache-cli provider. My contract deploys alright, but trying to call the ...
1
vote
3answers
895 views

Using ganache-cli provider causes “Error: Provider not set or invalid”

I'm trying to write and run tests for my smart contract and I get this error: "Error: Provider not set or invalid" Smart contract code: const assert = require('assert'); const ganache = require('...
1
vote
1answer
69 views

Truffle migrate ERC820Registry

I use Truffle and Ganache and I want to test some contracts that use the ERC820 Registry. I'm new to Truffle (and JavaScript in general) and I'm struggling to follow the instructions described in EIP-...
0
votes
1answer
71 views

the tx doesn't have the correct nonce. account has nonce of: 12 tx has nonce of: 3 - Ganache

I am trying to run my simple contract with different parameters (in the form of encoded signatures) and intends to put multiple transaction into ONE block. If I set Ganache GUI with automine option, ...
0
votes
1answer
137 views

Getting error in the contract code “please check your gas amount”

I am getting this error: Error: The contract code couldn't be stored, please check your gas amount. This is when I am importing one extra contract with the name of TimedCrowdsale from ...
0
votes
1answer
39 views

Ganache become disconnected after some hours

I am running my program to deploy thousand of contracts and millions of transaction to interact with them, which definitely need a lot of hours. But, when i let my program running during night (...
0
votes
1answer
144 views

truffle-contract: cannot test method before real consume ether method

I am using truffle-contract for connecting between frontend and smart contract. Currently, I can call method on smart contract and can consume ether successfully. const result = await instance....
0
votes
1answer
252 views

Solidity test file reaches gas limit due to imports

I have a sol contract X.sol and a sol test file TestX.sol. X.sol is large: ~4m Gas after optimisation TextX.sol compiles, migrates and executes tests fine when just executing a single test - testY, ...
0
votes
1answer
302 views

Comparison of Metamask vs Ganache [closed]

I watched some videos about Metamask but I am so confused by it Metamask: To use the final application like the end user would. Based on that, what is the purpose of React then? What are the ...