Grunt uglifym - call stack size exceeded - gruntjs

Question

I am trying to use uglify with grunt to concat and minify some files. I have already used the npm to install grunt-contrib-uglify.
I have the following in my grunt.js file: (I have removed some other tasks for anonymity)
module.exports = function(grunt) {
'use strict';
grunt.loadNpmTasks('grunt-contrib-uglify');
uglify: {
options: {
sourceMap: 'app/map/source-map.js'
},
files: {
'app/dist/sourcefiles.min.js': [
'app/test_js/test.js'
]
}
}
};
I then run:
grunt uglify
but I keep getting the following error:
Warning: Maximum call stack size exceeded Use --force to continue.
If I use force, the grunt task never stops running.
Can someone tell me where I am going wrong? I am tearing my hair out on this one.

Answer 1

I had the same problem, using an other Grunt plugin called recess.
The error message was not explicit.
Warning: Cannot read property 'message' of undefined Use --force to continue.
But the verbose mode showed that my task was called hundred of times.
The problem was that I created a "cyclic dependency" (causing an infinite loop) when I registered my task.
grunt.registerTask('recess', ['recess']); //does not work => cyclic dependency!
The first parameter of registerTask method is an "alias task" and has to be different from the task names defined in the second parameter.
I corrected like this:
grunt.registerTask('my-recess-task', ['recess']);
And I runned the task calling this (in the Command prompt window)
grunt my-recess-task
And then it was OK!
More about registerTask() method, from grunt API:
http://gruntjs.com/api/grunt.task#grunt.task.registertask

Answer 2

I also met this problem, i solved this by removing
grunt.registerTask('uglify', ['uglify']);
before i solved this, i ran grunt uglify -v to check what happend.
I found it because that where you using this grunt.loadNpmTasks('grunt-contrib-uglify'); ,it implicitly executes the grunt.registerTask('uglify', ['uglify']); ^_^