Hi I'm trying to install Grunt on Windows 7 64 bit. I have installed Grunt using commands
npm install -g grunt
npm install -g grunt-cli
but now if I try to do grunt init, it is throwing me an error -
A valid Gruntfile could not be found. Please see the getting started guide for more information on how to configure grunt: http://gruntjs.com/getting-started Fatal error: Unable to find Gruntfile.
But when I look inside the grunt folder on my system the Gruntfile.js is there. can someone please guide me how to install this grunt properly and how to write built Script using the grunt. I have one HTML page and java script if i wants built a script using Grunt how can i do it?
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npm
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To setup GruntJS build here is the steps:
Make sure you have setup your package.json or setup new one:
npm init
Install Grunt CLI as global:
npm install -g grunt-cli
Install Grunt in your local project:
npm install grunt --save-dev
Install any Grunt Module you may need in your build process. Just for sake of this sample I will add Concat module for combining files together:
npm install grunt-contrib-concat --save-dev
Now you need to setup your Gruntfile.js which will describe your build process. For this sample I just combine two JS files file1.js and file2.js in the js folder and generate app.js:
module.exports = function(grunt) {
// Project configuration.
grunt.initConfig({
concat: {
"options": { "separator": ";" },
"build": {
"src": ["js/file1.js", "js/file2.js"],
"dest": "js/app.js"
}
}
});
// Load required modules
grunt.loadNpmTasks('grunt-contrib-concat');
// Task definitions
grunt.registerTask('default', ['concat']);
};
Now you'll be ready to run your build process by following command:
grunt
I hope this give you an idea how to work with GruntJS build.
NOTE:
You can use grunt-init for creating Gruntfile.js if you want wizard-based creation instead of raw coding for step 5.
To do so, please follow these steps:
npm install -g grunt-init
git clone https://github.com/gruntjs/grunt-init-gruntfile.git ~/.grunt-init/gruntfile
grunt-init gruntfile
For Windows users: If you are using cmd.exe you need to change ~/.grunt-init/gruntfile to %USERPROFILE%\.grunt-init\. PowerShell will recognize the ~ correctly.
Some time we need to set PATH variable for WINDOWS
%USERPROFILE%\AppData\Roaming\npm
After that test with where grunt
Note: Do not forget to close the command prompt window and reopen it.
You should be installing grunt-cli to the devDependencies of the project and then running it via a script in your package.json. This way other developers that work on the project will all be using the same version of grunt and don't also have to install globally as part of the setup.
Install grunt-cli with npm i -D grunt-cli instead of installing it globally with -g.
//package.json
...
"scripts": {
"build": "grunt"
}
Then use npm run build to fire off grunt.
I got the same issue, but i solved it with changing my Grunt.js to Gruntfile.js Check your file name before typing grunt.cmd on windows cmd (if you're using windows).
Source: Stackoverflow.com