Package.swift is the project's manifest file that describes all the packages your project relies on. It is always located in the root directory of a Vapor project:
// File: Package.swift
// swift-tools-version:4.0
import PackageDescription
let package = Package(
: "helloWorld", // [1]
: [ // [2]
// A server-side Swift web framework.
.package(: "https://github.com/vapor/vapor.git", : "3.0.0"), // [3]
// Swift ORM (queries, models, relations, etc) built on SQLite 3.
.package(: "https://github.com/vapor/fluent-sqlite.git", : "3.0.0-rc.2") // [4]
],
: [ // [5]
.target(: "App", : ["FluentSQLite", "Vapor"]),
.target(: "Run"...