AngularJS 1.x custom filter can't be injected, unknown provider

Question

I\'m trying to create a custom filter, but when I try to inject it into my controller, I get an \'Unknown provider\' error. I have checked and double checked all the references,

Answer 1

you didn't mention if it's in production or on a local server, but just in case you are minifying your files, try this:

angular.module('equiclass.controllers')
  .controller('CourseCtrl', ['$scope', 'testFilter', function ($scope, testFilter) {

  }]);