GruntJS refuses to work. Task default or every other was not found - gruntjs

Question

I'm trying to setup gruntJS on my local machine. These are the steps I have already done:
Install nodeJS
Download gruntJS in a root folder of project with command:
npm install -g grunt-cli
Download grunt also in a root folder of project with:
npm install grunt
Also, I have created Gruntfile.js and here is content of it:
module.exports = function(grunt) {
// Project configuration.
grunt.initConfig({
min: {
css: {
src: 'templates/folder1/css/*.css',
dest: 'app.min.css'
}
},
});
};
And I was expected how this will work and minimize all css files and move it to the root ( because destination specified as root ).
I need to say how I was follow this tutorial:
https://www.youtube.com/watch?v=q3Sqljpr-Vc
And I really don't know what I do wrong.
Here is how I call grunt and error ( its better to say warning message ) which I get:
C:\wamp\www\myProject>grunt min
Warning: Task "min" not found. Use --force to continue.
Aborted due to warnings.

Answer 1

you need to install some tasks for use. From your example i would guess you are trying to minify some CSS?
For that i would use the grunt-contrib-cssmin task. To use first install using
npm install grunt-contrib-cssmin
you will also need to register the task at the bottom of your gruntfile like this grunt.loadNpmTasks('grunt-contrib-cssmin').
then your gruntfile will look like this
module.exports = function(grunt) {
// Project configuration.
grunt.initConfig({
cssmin: {
minify: {
src: ['templates/folder1/css/*.css'],
dest: 'app.min.css'
}
}
});
grunt.loadNpmTasks('grunt-contrib-cssmin');
grunt.registerTask('min' ['cssmin']);
};
For more info i recommend you read the documentation and familiarise yourself with the examples at http://gruntjs.com/sample-gruntfile