AngularJS Error: $injector:unpr Unknown Provider

Question

I\'m trying to build my own service by following the example in the documentation for the factory methodology. I think I\'ve done something wrong however because I continue

Answer 1

This error is also appears when one accidntally injects $scope into theirs factory:

angular.module('m', [])
    .factory('util', function ($scope) { // <-- this '$scope' gives 'Unknown provider' when one attempts to inject 'util'
       // ...
    });