root@ubuntu-4gb-nyc3-01:~# truffle migrate --network ropsten (node:14686) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): TypeError: this.provider.sendAsync is not a function (node:14686) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. Using network 'ropsten'.
Running migration: 1_initial_migration.js
After that it exits to root@ubuntu-4gb-nyc3-01:~# without running 2_deploy_contracts.js
My truffle.js looks like the following :
**var bip39 = require("bip39");
var hdkey = require('ethereumjs-wallet/hdkey');
var ProviderEngine = require("web3-provider-engine");
var WalletSubprovider = require('web3-provider-engine/subproviders/wallet.js');
var Web3Subprovider = require("web3-provider-engine/subproviders/web3.js");
var Web3 = require("web3");
// Get our mnemonic and create an hdwallet
var mnemonic = "twelve words we can find in metamask settings reveal seed words blabla";
var hdwallet = hdkey.fromMasterSeed(bip39.mnemonicToSeed(mnemonic));
// Get the first account using the standard hd path.
var wallet_hdpath = "m/44'/60'/0'/0/";
var wallet = hdwallet.derivePath(wallet_hdpath + "0").getWallet();
var address = "0x" + wallet.getAddress().toString("hex");
console.log(address);
var providerUrl = "https://ropsten.infura.io/mytoken";
var engine = new ProviderEngine();
engine.addProvider(new WalletSubprovider(wallet, {}));
engine.addProvider(new Web3Subprovider(new Web3.providers.HttpProvider(providerUrl)));
engine.start(); // Required by the provider engine.
module.exports = {
networks: {
ropsten: {
network_id: 3, // Official ropsten network id
provider: engine, // Use our custom provider
from: address, // Use the address we derived
gas: 3000000
}
},
rpc: {
// Use the default host and port when not using ropsten
host: "my-server-ip-goes-here",
port: 8545
}
};**
Where will I find this.provider.sendAsync function?
I m using node : v8.2.1 and Ubuntu 16.04
I m really stuck with this. Any help would be appreciated. Thanks
