NPM and Git Respositroy field missing but I have one in the package.json

NPM and Git Respositroy field missing but I have one in the package.json

This is my NPM Package JSON, the Git Repository is defined in the json. It
is a password protected on hosted at Kiln. But NPM still complains of a
repository field missing ?
This is the error npm WARN package.json dateformat@1.0.2-1.2.3 No
repository field.
And this is the contents of my package.json
{
"name": "Pocket-to-Pocket",
"version": "1.0.0",
"description": "Card Management App For PFS",
"main": "Gruntfile.js",
"scripts": {},
"repository": {
"type": "git",
"url":
"https://nyx.kilnhg.com/Code/Prepaid-Financial-Services/Group/Pocket-to-Pocket.git"
},
"author": "Nyx Digital",
"license": "All Rights Reserved.",
"devDependencies": {
"grunt": "~0.4.1",
"grunt-imageoptim": "~1.2.12"
}
}