Unable to add ngimgcrop directive in ionic project

I am using ngimgcrop as a cropping tool for images taken by camera/ uploaded from gallery.

As per the installation instructions, i have added ‘ngImgCrop’ as a dependency in app.js file of the project.

angular.module('app', ['ngImgCrop', 'ionic', 'app.services'])

I am using the source file from lib folder in index.html after installing the directive using bower.



But, I get the following error while doing running the app in webview (using 'ionic serve -l -c)

Uncaught ReferenceError: crop is not defined
Uncaught Error: [$injector:modulerr] Failed to instantiate module starter due to:
Failed to instantiate module ngImgCrop due to:
Module 'ngImgCrop' is not available! You either misspelled the module name or forgot to load it.

Can someone point to me if I am missing a major step / making a silly mistake while using this directive?

Kindly let me know if you need any further information.