grunt-contrib-watch causing Maximum call stack size exceeded - gruntjs

Question

When I execute the clean task (grunt clean), everything works as expected but when I run the watch task (grunt test), I get the following error:
util.js:35
var str = String(f).replace(formatRegExp, function(x) {
^
RangeError: Maximum call stack size exceeded
Here's my gruntfile
module.exports = (grunt) ->
grunt.initConfig
pkg: grunt.file.readJSON('package.json')
clean: ['tmpDir/']
watch:
options:
spawn: false
src:
tasks: ['clean']
files: [
src: 'client/assets/strings/en/str.coffee'
]
# plugins
grunt.loadNpmTasks('grunt-contrib-clean')
grunt.loadNpmTasks('grunt-contrib-watch')
# tasks
grunt.registerTask('test', ['watch'])
Here's my package.json file:
{
"author": "Your Name <Your Email>",
"name": "app-name",
"description": "Application description",
"version": "0.0.1",
"homepage": "",
"repository": {
"type": "git",
"url": ""
},
"engines": {
"node": "~0.10.28"
},
"scripts": {
"start": "muffin server"
},
"dependencies": {
"coffee-script": "~1.1.2",
"express": "~3.0.6",
"chai": "~1.4.2",
"underscore": "~1.4.3",
"wd": "0.0.27"
},
"devDependencies": {
"express": "~3.0.6",
"grunt": "^0.4.5",
"grunt-contrib-coffee": "^0.11.1",
"grunt-contrib-copy": "^0.6.0",
"grunt-contrib-less": "^0.11.4",
"grunt-contrib-watch": "^0.6.1",
"requirejs": "~2.0.1"
}
}
The output when I run with --verbose is the following:
Note: replaced base path with ***
Initializing
Command-line options: --verbose
Reading "gruntfile.coffee" Gruntfile...OK
Registering Gruntfile tasks.
Reading package.json...OK
Parsing package.json...OK
Initializing config...OK
Registering "grunt-contrib-clean" local Npm module tasks.
Reading /***/node_modules/grunt-contrib-clean/package.json...OK
Parsing /***/node_modules/grunt-contrib-clean/package.json...OK
Loading "clean.js" tasks...OK
+ clean
Registering "grunt-contrib-watch" local Npm module tasks.
Reading /***/node_modules/grunt-contrib-watch/package.json...OK
Parsing /***/node_modules/grunt-contrib-watch/package.json...OK
Loading "watch.js" tasks...OK
+ watch
Loading "gruntfile.coffee" tasks...OK
+ test
Running tasks: test
Running "test" task
Running "watch" task
Waiting...
Verifying property watch exists in config...OK
Verifying property watch.src.files exists in config...OK
Warning: Object #<Object> has no method 'indexOf'
Running "watch" task
Waiting...
Verifying property watch exists in config...OK
Verifying property watch.src.files exists in config...OK
Warning: Object #<Object> has no method 'indexOf'
... many of these
Running "watch" task
Waiting...
Verifying property watch exists in config...OK
Verifying property watch.src.files exists in config...OK
Warning: Object #<Object> has no method 'indexOf'
(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.
(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.
... many of these
(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.
util.js:35
var str = String(f).replace(formatRegExp, function(x) {
^
RangeError: Maximum call stack size exceeded

Answer 1

I finally figured out a similar problem I was having with spell. I was using
grunt.registerTask('spell', [ 'spell']);
The trick was that Grunt doesn't seem to like the repetition in names. When I switch to
grunt.registerTask('spellCheck', [ 'spell']);
Everything worked as it should.
may this help you

Answer 2

The files property takes an Array of file pattern strings. You've supplied an object it doesn't know how to interpret.
Change this:
files: [
src: 'client/assets/strings/en/str.coffee'
]
To this:
files: [
'client/assets/strings/en/str.coffee'
]