Node.js Heroku Deployment - Fails To Exec Postinstall Script To Install Bower

Deployment of my Node.js MEAN app to heroku fails with the following errors. I can't figure out what is wrong with the bower install...

Here is the error message:

2606 info postinstall App@1.0.0
2607 verbose unsafe-perm in lifecycle true
2608 info App@1.0.0 Failed to exec postinstall script
2609 error App@1.0.0 postinstall: `./node_modules/bower/bin/bower install`
2609 error Exit status 1
2610 error Failed at the App@1.0.0 postinstall script.
2610 error This is most likely a problem with the App package,
2610 error not with npm itself.
2610 error Tell the author that this fails on your system:
2610 error     ./node_modules/bower/bin/bower install
!     Push rejected, failed to compile Node.js app

Here is my Bower.json

    {
  "name": "mean",
  "version": "1.0.0",
  "dependencies": {
    "bootstrap": "*",
    "angular": "*",
    "angular-resource": "*",
    "angular-cookies": "*",
    "angular-ui-utils": "*",
    "angular-bootstrap": "*",
    "json3": "*",
    "jquery": "*",
    "angular-ui-router": "*",
    "angular-animate": "*",
    "move.js": "git://github.com/visionmedia/move.js.git#~0.3.3",
    "animate.css": "*",
    "ngAnimate-animate.css": "*",
    "angularLocalStorage": "~0.1.7",
    "jquery-nicescroll": "*"
  },
  "resolutions": {
    "angular": "1.2.4"
  }
}

Here is my Package.json

"scripts": {
    "start": "node node_modules/grunt-cli/bin/grunt",
    "test": "node node_modules/grunt-cli/bin/grunt test",
    "postinstall": "./node_modules/bower/bin/bower install"
},