Hello, probably you have to change something with Atom’s configuration, tweak something related to the linter package (the package may be already obsolete). Not familiar with Atom’s configuration, sorry, since commonly one use VS Code for Solidity development instead because of its more robust environment.
Hope the information is helpful.
With kind regards
There is an error on that application, just check the URL, you will receive an app error "message": "Application error".
I suggest to start using VS Code for all our programming courses, atom is nice but it does not have that many extensions or features like VS Code, also most of our courses are using VS Code.
Carlos Z
Thank you. I decided to move over to vscode
issue when deploying Token
When migrating the contract i have the following error;
type or paste code here
truffle(develop)> migrate
Could not connect to your Ethereum client. Please check that your Ethereum client:
- is running
- is accepting RPC connections (i.e., "--rpc" option is used in geth)
- is accessible over the network
- is properly configured in your Truffle configuration file (truffle.js)
i have installed ganache
i have installed testrpc
but i still have this error of connection
this is my truffle-config.js file:
networks: {
// Useful for testing. The `development` name is special - truffle uses it by default
// if it's defined here and no other network is specified at the command line.
// You should run a client (like ganache-cli, geth or parity) in a separate terminal
// tab if you use this network and you must also set the `host`, `port` and `network_id`
// options below to some value.
//
development: {
host: "127.0.0.1", // Localhost (default: none)
port: 8545, // Standard Ethereum port (default: none)
network_id: "*", // Any network (default: none)
}
Hello @patgeek
There are two approaches to proceed:
Hope the information is helpful to you
With kind regards
hello
i have configured truffle to use Ropsten:
ropsten: {
provider: () => new HDWalletProvider(mnemonic, `https://ropsten.infura.io/v3/${projectId}`),
network_id: 3, // Ropsten's id
//gas: 5500000, // Ropsten has a lower block limit than mainnet
gas: 0000005, // Ropsten has a lower block limit than mainnet
confirmations: 2, // # of confs to wait between deployments. (default: 0)
timeoutBlocks: 200, // # of blocks before a deployment times out (minimum/default: 50)https://ropsten.infura.io/v3/9ccc3ae01b3b4c96b32110738f5654dd
skipDryRun: true // Skip dry run before migrations? (default: false for public nets )
},
when i try to migrate my project to ropsten i have an out of “Ran out of GAs” error:
type or paste"Migrations" ran out of gas (using a value you set in your network config or deployment parameters.)
* Block limit: 8000000
* Gas sent: 5500000 code here
what can i do to solve this ran out of gas issue?
no remove the gas param you have in your tufflecConfig.js file, re u tryinh to deply to ropstent yes. its jst trial and eeror might take afew times but get rid of thr gas param in yout truffle config
Hello @patgeek
simple tagging for notification, see mcgrane5’s remark above.
With kind regards
Hello @tricia2321
It’s a compilation error regarding the syntax of the constructor.
You need to remove the ; at the end of line 7 and line 8 because essentially should be one block of code all together. By putting ‘;’ between them makes them separate blocks of code.
Hope that clear things up for you
With kind regards
your syntax is the issue. you have a semi colon at the end of your constructor, but ERC20Detailed is extending your constructor so that you can simultaneously fill the constructor of the erc20detailed contract. so change to,
constructor(string memory _name, string memory _symbol) ERC20Detailed(_name, _symbol, _decimals) public {}
ahhh sorry @alp257 only saw your reply after i posted. brillaint. yeah @tricia2321 its exactly as @alp257says
Hi guys,
There is no ERC20Detailed.sol in the openzeppelin 's folder, is it a problem for the course or I can following it ?
Hello @Mis0u,
better use the latest version of Openzeppelin’s ERC20, though you have to keep this in mind and make adjustments to the code moving forward with the course. if I remember it right, the version used in the course is outdated, using the latest version already will help you get use to what is already being used by everyone.
more or less this should be how your code looks like:
pragma solidity ^0.8.0;
import "../node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol";
contract GameToken is ERC20 {
constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol) public {}
function mint(address to, uint256 amount) public virtual {
_mint(to, amount);
}
}