“Fatal error: Unable to find local grunt.” when running “grunt” command

Question

I uninstalled grunt with following command.

npm uninstall -g grunt

Then I again installed grunt with following command.

npm ins         


        

Answer 1

I had the same issue today on windows 32 bit,with node 0.10.25, and grunt 0.4.5.

I followed dongho's answer, with just few extra steps. here are the steps I used to solve the error:

1) create your package.json

$ npm init

2) install grunt for this project, this will be installed under node_modules/. --save-dev will add this module to devDependency in your package.json

$ npm install grunt --save-dev

3) then create gruntfile.js , with a sample code like this:

module.exports = function(grunt) {

  grunt.initConfig({
    jshint: {
      files: ['Gruntfile.js', 'src/**/*.js', 'test/**/*.js'],
      options: {
        globals: {
          jQuery: true
        }
      }
    },
    watch: {
      files: ['<%= jshint.files %>'],
      tasks: ['jshint']
    }
  });

  grunt.loadNpmTasks('grunt-contrib-jshint');
  grunt.loadNpmTasks('grunt-contrib-watch');

  grunt.registerTask('default', ['jshint']);

};

here, src/**/*.js and test/**/*.js should be the paths to actual JS files you are using in your project

4) run npm install grunt-contrib-jshint --save-dev

5) run npm install grunt-contrib-watch --save-dev

6) run $ grunt

Note: when you require common package like concat, uglify etc, you need to add those modules via npm install, just the way we installed jshint and watch in step 4 & 5