Gruntfile.js - Task "default" not found

Question

Here is my Gruntfile.js

module.exports = function(grunt) {     grunt.initConfig({         pkg: grunt.file.readJSON("package.json"),          uglify: {           options: {             mangle: true           }           build: {             src: "js/*.js",             dest: "js/min/script.js"           }         }      });      grunt.loadNpmTasks("grunt-contrib-uglify");      grunt.registerTask('default', [uglify]);  }; 

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Here is my package.json - I have run npm install already, with all of the plugins that I will use in my Gruntfile, grunt-contrib-uglify is among them.

{   "name": "bootbuckle",   "version": "0.1.0",   "engines": {     "node": ">= 0.10.0"   },   "devDependencies": {     "grunt": "~0.4.2",     "grunt-contrib-watch": "~0.5.3",     "grunt-contrib-sass": "~0.6.0",     "grunt-csscomb": "~2.0.1",     "grunt-contrib-htmlmin": "~0.1.3",     "grunt-contrib-imagemin": "~0.4.1",     "grunt-contrib-uglify": "~0.2.7"   } } 

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When I simply run grunt in the terminal - here is the error

  build: {   ^^^^^ Loading "Gruntfile.js" tasks...ERROR >> SyntaxError: Unexpected identifier Warning: Task "default" not found. Use --force to continue. Aborted due to warnings. 

Thanks in advance for any help you may be able to provide.

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EDIT Following Matti's guidance I have inserted a missing comma, a new error is now being thrown

Loading "Gruntfile.js" tasks...ERROR >> ReferenceError: uglify is not defined Warning: Task "default" not found. Use --force to continue. Aborted due to warnings. 

Answer 1

You missed a comma here:

    uglify: {       options: {         mangle: true       }, // <-------       build: {         src: "js/*.js",         dest: "js/min/script.js"       }     } 

Edit: as posted by japrescott, you have to define uglify task as string.

grunt.registerTask('default', ["uglify"]);