I ran migrate in the terminal for the 3rd video based on the casino program, and now itās saying Unkown network āganacheā. See your Truffle configuration file for available networks. Iāve looked in truffle-config.js and havenāt found one that has Ganache in it.
Hi @Kahumba,
Firstly, Can you paste your truffle-config.js over here to make sure you have It rightly set up.
Secondly, When creating a workplace on ganache, did you remember to link the correct truffle-config.js file with the workspace.
/**
* Use this file to configure your truffle project. It's seeded with some
* common settings for different networks and features like migrations,
* compilation and testing. Uncomment the ones you need or modify
* them to suit your project as necessary.
*
* More information about configuration can be found at:
*
* truffleframework.com/docs/advanced/configuration
*
* To deploy via Infura you'll need a wallet provider (like @truffle/hdwallet-provider)
* to sign your transactions before they're sent to a remote public node. Infura accounts
* are available for free at: infura.io/register.
*
* You'll also need a mnemonic - the twelve word phrase the wallet uses to generate
* public/private key pairs. If you're publishing your code to GitHub make sure you load this
* phrase from a file you've .gitignored so it doesn't accidentally become public.
*
*/
// const HDWalletProvider = require('@truffle/hdwallet-provider');
// const infuraKey = "fj4jll3k.....";
//
// const fs = require('fs');
// const mnemonic = fs.readFileSync(".secret").toString().trim();
module.exports = {
/**
* Networks define how you connect to your ethereum client and let you set the
* defaults web3 uses to send transactions. If you don't specify one truffle
* will spin up a development blockchain for you on port 9545 when you
* run `develop` or `test`. You can ask a truffle command to use a specific
* network from the command line, e.g
*
* $ truffle test --network <network-name>
*/
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)
// },
// Another network with more advanced options...
// advanced: {
// port: 8777, // Custom port
// network_id: 1342, // Custom network
// gas: 8500000, // Gas sent with each transaction (default: ~6700000)
// gasPrice: 20000000000, // 20 gwei (in wei) (default: 100 gwei)
// from: <address>, // Account to send txs from (default: accounts[0])
// websockets: true // Enable EventEmitter interface for web3 (default: false)
// },
// Useful for deploying to a public network.
// NB: It's important to wrap the provider as a function.
// ropsten: {
// provider: () => new HDWalletProvider(mnemonic, `https://ropsten.infura.io/v3/YOUR-PROJECT-ID`),
// network_id: 3, // Ropsten's id
// gas: 5500000, // 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)
// skipDryRun: true // Skip dry run before migrations? (default: false for public nets )
// },
// Useful for private networks
// private: {
// provider: () => new HDWalletProvider(mnemonic, `https://network.io`),
// network_id: 2111, // This network is yours, in the cloud.
// production: true // Treats this network as if it was a public net. (default: false)
// }
},
// Set default mocha options here, use special reporters etc.
mocha: {
// timeout: 100000
},
// Configure your compilers
compilers: {
solc: {
version: "0.7.5", // Fetch exact version from solc-bin (default: truffle's version)
// docker: true, // Use "0.5.1" you've installed locally with docker (default: false)
// settings: { // See the solidity docs for advice about optimization and evmVersion
// optimizer: {
// enabled: false,
// runs: 200
// },
// evmVersion: "byzantium"
// }
}
}
}
This is the code in truffle-config.js. And what am I supposed to link in truffle-config.js?
Hi,
Your truffle-config looks fine.
Youād have to link your truffle-config file with the ganache workplace which you are setting up. Please check out this video at minute 1:35. https://www.youtube.com/watch?v=lZmwc1M-D24&list=PLFPZ8ai7J-iR6DMqBfZwJGc0vaNZPbJDv&index=6
Let me know how it goes. Thanks. 
You could also check out this post from our academy forum - https://forum.ivanontech.com/t/truffle-introduction/10049/546?u=malik.
For reference let me post the answer here for you ā
I fixed this by adjusting the ātruffle-config.jsā file. Within that file youāll see a ānetworksā section with some commented out lines. Remove the comments and adjust the setting to what Ganache shows in the header (the RCP server, Network IDā). Mine looks like
development: {
host: "127.0.0.1",
port: 7545,
network_id: 5777,
},
Iāve now put my own Ganache settings into the networks one mine are
development: {
host: "127.0.0.1", // Localhost (default: none)
port: 7545, // Standard Ethereum port (default: none)
network_id: "5777", // Any network (default: none)
But it still shows me this
truffle(ganache)> migrate
Compiling your contracts...
===========================
> Everything is up to date, there is nothing to compile.
Unknown network "ganache". See your Truffle configuration file for available networks.
Here is the full code I have.
/**
* Use this file to configure your truffle project. It's seeded with some
* common settings for different networks and features like migrations,
* compilation and testing. Uncomment the ones you need or modify
* them to suit your project as necessary.
*
* More information about configuration can be found at:
*
* truffleframework.com/docs/advanced/configuration
*
* To deploy via Infura you'll need a wallet provider (like @truffle/hdwallet-provider)
* to sign your transactions before they're sent to a remote public node. Infura accounts
* are available for free at: infura.io/register.
*
* You'll also need a mnemonic - the twelve word phrase the wallet uses to generate
* public/private key pairs. If you're publishing your code to GitHub make sure you load this
* phrase from a file you've .gitignored so it doesn't accidentally become public.
*
*/
// const HDWalletProvider = require('@truffle/hdwallet-provider');
// const infuraKey = "fj4jll3k.....";
//
// const fs = require('fs');
// const mnemonic = fs.readFileSync(".secret").toString().trim();
module.exports = {
/**
* Networks define how you connect to your ethereum client and let you set the
* defaults web3 uses to send transactions. If you don't specify one truffle
* will spin up a development blockchain for you on port 9545 when you
* run `develop` or `test`. You can ask a truffle command to use a specific
* network from the command line, e.g
*
* $ truffle test --network <network-name>
*/
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: 7545, // Standard Ethereum port (default: none)
network_id: "5777", // Any network (default: none)
},
// Another network with more advanced options...
// advanced: {
// port: 8777, // Custom port
// network_id: 1342, // Custom network
// gas: 8500000, // Gas sent with each transaction (default: ~6700000)
// gasPrice: 20000000000, // 20 gwei (in wei) (default: 100 gwei)
// from: <address>, // Account to send txs from (default: accounts[0])
// websockets: true // Enable EventEmitter interface for web3 (default: false)
// },
// Useful for deploying to a public network.
// NB: It's important to wrap the provider as a function.
// ropsten: {
// provider: () => new HDWalletProvider(mnemonic, `https://ropsten.infura.io/v3/YOUR-PROJECT-ID`),
// network_id: 3, // Ropsten's id
// gas: 5500000, // 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)
// skipDryRun: true // Skip dry run before migrations? (default: false for public nets )
// },
// Useful for private networks
// private: {
// provider: () => new HDWalletProvider(mnemonic, `https://network.io`),
// network_id: 2111, // This network is yours, in the cloud.
// production: true // Treats this network as if it was a public net. (default: false)
// }
},
// Set default mocha options here, use special reporters etc.
mocha: {
// timeout: 100000
},
// Configure your compilers
compilers: {
solc: {
version: "^0.7.5", // Fetch exact version from solc-bin (default: truffle's version)
// docker: true, // Use "0.5.1" you've installed locally with docker (default: false)
// settings: { // See the solidity docs for advice about optimization and evmVersion
// optimizer: {
// enabled: false,
// runs: 200
// },
// evmVersion: "byzantium"
// }
}
}
}
I donāt understand where Iām going wrong?
Exit truffle console with ctrl + c twice and then run truffle migrate
1 Like
Nice it worked halfway, but now itās telling me this
PS D:\Casino Example> truffle migrate
Compiling your contracts...
===========================
> Everything is up to date, there is nothing to compile.
Starting migrations...
======================
> Network name: 'ganache'
> Network id: 5777
> Block gas limit: 6721975 (0x6691b7)
1_initial_migration.js
======================
Deploying 'Migrations'
----------------------
> transaction hash: 0x4487ab2eadd28a5ba4d7a650c64a1c64e269b4d253a2cdd2549663b8f770ef57
> Blocks: 0 Seconds: 0
> contract address: 0x45A6bfbB1291E70B1B10B3C2B38DF109aD6429f9
> block number: 1
> block timestamp: 1621466748
> account: 0xde525Cd9cb36503C180Ed0a7c473F9aDA457c0c3
> balance: 99.99626074
> gas used: 186963 (0x2da53)
> gas price: 20 gwei
> value sent: 0 ETH
> total cost: 0.00373926 ETH
> Saving migration to chain.
> Saving artifacts
-------------------------------------
> Total cost: 0.00373926 ETH
2_contract_migration.js
=======================
C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\459.bundled.js:25500
throw new Error("Could not find artifacts for " + import_path + " from any sources");
^
Error: Could not find artifacts for FlipContract from any sources
at Resolver.require (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\resolver\dist\lib\resolver.js:61:1)
at Object.require (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\migrate\index.js:172:1)
at ResolverIntercept.require (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\migrate\ResolverIntercept.js:22:1)
at D:\Casino Example\migrations\2_contract_migration.js:1:32
at Script.runInContext (node:vm:141:12)
at Script.runInNewContext (node:vm:146:17)
at Object.file (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\require\require.js:94:1)
at Migration._load (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\migrate\Migration.js:49:1)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at Migration.run (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\migrate\Migration.js:212:1)
at Object.runMigrations (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\migrate\index.js:150:1)
at Object.runFrom (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\migrate\index.js:110:1)
at Object.run (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\migrate\index.js:87:1)
at runMigrations (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\commands\migrate.js:258:1)
at Object.run (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\commands\migrate.js:223:1)
at Command.run (C:\Users\Kahum\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\command.js:147:1)
Truffle v5.3.6 (core: 5.3.6)
Node v16.1.0
Check your migration file ā2_contract_migrationā, especially in the require statement. Make sure the Name of the artifact matches exactly to the contract name (not the file name). Do share your migration file and contract file here so we can check it out as well.
Thanks.
that was it thank you so much!