[Solved] Uncaught Reference Error: angular is not defined

You had palced your AngularJS script tag after the CustomDet that references AngularJS.

So place the AngularJS script before the CustomDet script.

Local Angularjs is not working so I have inserted online Angular JS

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="~/Scripts/CustomerAngular.js"></script>