Why don't scripts work when building a project on Grunt?

Question

Grunt.js

Good morning! :)
I collect the project with the help of soil.
But when you run the collected files, the scripts refuse to work.
It sticks together in my opinion, but even the console.log does not work :(
Here is the code (not complete):
bower.json

{
  "devDependencies": {
    "bootstrap": "~3.3.2",
    "jquery": "~2.1.3",
    "jquery-ui": "~1.11.2",
    "jquery-slimscroll": "~1.3.3",
    "font-awesome": "~4.3.0"
  }
}

Gruntfile.js

module.exports = function (grunt) {

    grunt.initConfig({

        bower_concat: {
            main: {
                cssDest: 'build/_bower.css',
                dest: 'build/_bower.js'
            }
        },

        concat_css: {
            main: {
                src: [
                    'build/_bower.css',
                    'css/*.css'
                ],
                dest: 'build/styles.css'
            }
        },

        concat: {
            main: {
                src: [
                    'build/_bower.js'
                    // 'js/*.js'
                ],
                dest: 'build/scripts.js'
            }
        }
    });
    require('load-grunt-tasks')(grunt);
    grunt.registerTask('default', [
        'bower_concat',
        'concat_css',
        'concat',
    ]);
};

package.json

{
  "main": "Gruntfile.js"
  },
  "devDependencies": {
    "grunt": "~0.4.5",
    "load-grunt-tasks": "~3.0.0",
    "grunt-concat-css": "~0.3.1",
    "grunt-bower-concat": "~0.4.0",
    "grunt-contrib-concat": "~0.5.0"
  }
}

upd:
My script:

console.log('1'); // выполняется (до вхождения в мой скрипт)
$(document).load(function () { // а вот сюда уже не попадает :(
console.log('2'); // не выполняется (после вхождения)

Thank you!

Answer 1

Here apparently it's not grunt'e. Try replacing $.load() with $.ready().
As far as I remember, $.load() has a status of deprecated.