Build not found error when trying to create an installer for my electron app

I am trying to create a window installer for my electron app (so that it can be run on any Windows computer as a standalone app) using electron-builder

When typing npm run dist on my computer, I run into the following error.

sh: 1: build: not found

npm ERR! Linux 3.4.0+
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "dist"
npm ERR! node v6.2.2
npm ERR! npm  v3.9.5
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! <NAME>@0.0.0 dist: `build`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the <NAME>@0.0.0 dist script 'build'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the <NAME>,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     build

Below is how my package.json file looks:

{
  "name": "<NAME>",
  "version": "0.0.0",
  "description": "[...]",
  "main": "index.js",
  "build": {
    "appId": "test.321",
    "app-category-type": "your.app.category.type",
    "win": {
      "iconUrl": "http://cdn.sstatic.net/Sites/stackoverflow/img/apple-touch-icon.png"
    }
  },
  "scripts": {
    "start": "electron main.js",
    "postinstall": "install-app-deps",
    "pack": "build --dir",
    "dist": "build"
  },
  "author": "<NAME> <jon@gmail.com>",
  "license": "ISC",
  "devDependencies": {
    "electron": "^1.3.3",
    "electron-installer-squirrel-windows": "^1.3.0",
    "electron-packager": "^7.5.1"
  }
}

I am using Windows 10, and executing the command via bash

electron-builder is not installed. You don't need electron-installer-squirrel-windows and electron-packager, — remove it and npm install electron-builder --save-dev