Simple gulp + browserify + livereload example

.gitignore

node_modules

gulpfile.js

var browserify = require('browserify');
var gulp       = require('gulp');
var gutil      = require('gulp-util');
var livereload = require('gulp-livereload');
var source     = require('vinyl-source-stream');

var paths = {
  scripts: {
    source: './main.js',
    destination: './',
    filename: 'bundle.js',
    watch: './main.js'
  }
}

gulp.task('scripts', function() {

  var bundle = browserify({
    entries: [paths.scripts.source],
    debug: true
  });

  return bundle.bundle()
    .pipe(source(paths.scripts.filename))
    .pipe(gulp.dest(paths.scripts.destination));
    .pipe(livereload());
});

gulp.task('watch', function() {
  livereload.listen();
  gulp.watch(paths.scripts.watch, ['scripts']);
});

gulp.task('default', ['scripts', 'watch']);

package.json

{
  "name": "gupltest",
  "version": "0.0.0",
  "description": "",
  "main": "gulpfile.js",
  "scripts": {
    "start": "gulp",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "BSD-2-Clause",
  "devDependencies": {
    "source": "0.0.3",
    "gulp": "~3.8.9",
    "browserify": "~6.2.0",
    "gulp-util": "~3.0.1",
    "gulp-livereload": "~2.1.1"
  }
}

1. Create files
2. npm install
3. create main.js file
4. `npm start``
5. profit?!?!?!

You have a typo on line 25, unnecessary semi-colon.

You also haven't included vinyl-source-stream in the package.json