Open a new Terminal window and run the following command:

Ganache-cli

This will run Ganache-cli on port 8545, and Ganache will create 10 default accounts for us. Each account will have 100 ether by default. You should see something like this in your console:

In our Truffle project, truffle.js defined 7545 as the default port number. We need to update the port number to 8545 to match with the Ganache port number, as follows:

module.exports = {
  networks: {
    development: {
      host: "127.0.0.1",
      port: 8545,
      network_id: "*" // Match any network id
    }
  }
};