'Unknown provider' error while retrieving lazy-loaded controller - angularjs

Question

I want 'MyController2' to inherit 'MyController1', however, both controllers are lazyloaded using ocLazyLoad. According to Jussi Kosunen's answer to this question (https://stackoverflow.com/a/15292441/2197555), I have made a function registerDynamic() to register the controllers, but it still reports the following error at the line with '$controller' in controller1.js:
Error: [$injector:unpr] Unknown provider: $elementProvider <- $element <- DataTableController
My codes are like this.
First file controller1.js:
angular.module( 'myApp',[])
.controller( 'MyController1', [ function($scope){
// ...
}]);
Second file controller2.js:
angular.module( 'myApp')
.controller( 'MyController2', [ '$controller', '$scope',function($controller, $scope){
$controller('MyController1', {$scope: $scope }); // here triggers error '[$injector:unpr] Unknown provider'
// ...
}]);
In the third File lazy-load.js, I lazyload the above two .js files:
var app = angular.module('myApp'),
queueLen = app._invokeQueue.length;
app.directive( 'LazyLoad', [ function( ){
return {
restrict: 'EA',
scope: {
src: '#',
},
link: function( scope, element, attr ){
var registerDynamic = function() {
// Register the controls/directives/services we just loaded
var queue = syncreonApp._invokeQueue;
for(var i=queueLen;i<queue.length;i++) {
var call = queue[i];
// call is in the form [providerName, providerFunc, providerArguments]
var provider = syncreonApp.providers[call[0]];
if(provider) {
// e.g. $controllerProvider.register("Ctrl", function() { ... })
$log.debug("Registering " + call[1] + " " + call[2][0] + " ...");
provider[call[1]].apply(provider, call[2]);
}
}
queueLen = i;
},
loadMultipleJs = function ( js_files ){
var deferred = $q.defer();
var js_file1 = js_files.shift(),
js_file2 = js_files.shift();
$ocLazyLoad.load( js_file1 )
.then ( function(){
registerDynamic();
$ocLazyLoad.load( js_file2 )
.then ( function(){
registerDynamic();
deferred.resolve();
}, function(){
deferred.reject();
});
}, function(){
deferred.reject();
});
};
jsonOfJsFilesToLoad = JSON.parse(scope.src);
loadMultipleJs(jsonOfJsFilesToLoad );
}
};
}]);
UPDATE
The official Angular documentation for 'Unknown Provider' error says:
Attempting to inject one controller into another will also throw an Unknown provider error:
Maybe we just cannot injector controller into anther even using $controller service?

Answer 1

You are taking the error message out of context.
Attempting to inject one controller into another will also throw an Unknown provider error:
angular.module('myModule', [])
.controller('MyFirstController', function() { /* ... */ })
.controller('MySecondController', ['MyFirstController', function(MyFirstController) {
// This controller throws an unknown provider error because
// MyFirstController cannot be injected.
}]);
That is not the way you are instantiating controllers.
It specifically says:
Use the $controller service if you want to instantiate controllers yourself.
Which is the way you are instantiating your controllers.
Look for your problem elsewhere.
Your error message:
Unknown provider: $elementProvider <- $element <- DataTableController
The way I read this is that in your DataTableController, you are trying to inject $element. $element is not a service is a local. To inject $element as a local with the $controller service:
$controller('DataTableController', {$scope: $scope, $element: value });