AngularJS attempted to open $modal, but it encountered an error because the controller named <controllername> was not registered

Question

AngularJS attempted to open $modal, but it encountered an error because the controller named <controllername> was not registered

Currently, I am in the process of enhancing a web application that was originally developed using AngularJS with typescript instead of JS.

I have a controller set up with a specific template that I want to display in a modal using $modal.open.

However, I keep encountering an error message that says "Error: [$controller:ctrlreg] The controller with the name 'AddWeightCtrl' is not registered." Despite searching on various platforms, including Stack Overflow, I haven't found a solution that fits my scenario.

When attempting to open the modal, this error occurs...

Error: [$controller:ctrlreg] The controller with the name 'AddWeightCtrl' is not registered. https://errors.angularjs.org/1.7.9/$controller/ctrlreg?p0=AddWeightCtrl

at angular.js:138
at $controller (angular.js:11680)
at setupControllers (angular.js:10711)
at nodeLinkFn (angular.js:10496)
at compositeLinkFn (angular.js:9835)
at publicLinkFn (angular.js:9700)
at angular.js:1967
at Scope.$eval (angular.js:19396)
at Scope.$apply (angular.js:19495)
at bootstrapApply (angular.js:1965)
(anonymous) @ angular.js:15570
(anonymous) @ angular.js:11849
$apply @ angular.js:19500
bootstrapApply @ angular.js:1965
invoke @ angular.js:5143
doBootstrap @ angular.js:1963
bootstrap @ angular.js:1983
angularInit @ angular.js:1868
(anonymous) @ angular.js:36426
trigger @ angular.js:3522

The code snippet for opening the modal looks like this...

export function openAddWeightModal(data: AddWeightCtrlParameters,
    $modal: mm.foundation.modal): angular.IPromise<apsCommands.addWeight> {

    return $modal.open({
        template: template,
        controller: 'AddWeightCtrl as vm',
        resolve: {
            params: () => data
        }
    }).result;
}

I've structured the controller and module declaration as follows...

class AddWeightCtrl {
    private $modalInstance: mm.foundation.modalInstance;
    form: angular.IFormController;

    constructor(
        $modalInstance: mm.foundation.modalInstance,
        $q: angular.IQService,
        params: AddWeightCtrlParameters,
        $stateParams: StateParams,) 
    {
        this.$modalInstance = $modalInstance;
    }

    submit() {
    }

    cancel() {
      this.$modalInstance.close();
    }

    private updateStatus() {
    }

    pass() {
    }

    fail() {
    }

    notApplicable() {
    }
}

export default angular.module('aps.controller.AddWeight', requires)
  .controller('AddWeightCtrl', AddWeightCtrl)
  .name;

This approach has worked without any issues elsewhere in our application, but I can't seem to figure out what's causing the error in this particular case. Any advice or suggestions would be greatly appreciated.

angularjs typescript

Answer 1

Answer №1

The issue arises when the $controller() function is invoked with a string that does not correspond to any of the registered controllers.

Possible reasons for this error include:

A typo in your controller reference.
Failure to register the controller.
A mistake in the name of the registered controller.

Another common cause is inadvertently overwriting the controller by declaring the module dependency multiple times.

INCORRECT

angular.module("app",[]).controller("AddWeightCtrl", addWeightCtrl);
function addWeightCtrl() {};

angular.module("app",[]).controller("ctrl", function() {});

In the above snippet, the second invocation of angular.module("app",[]) overrides the app module and the AddWeightCtrl controller.

BETTER PRACTICE

 angular.module("app",[])

 angular.module("app").controller("AddWeightCtrl", addWeightCtrl);
 function addWeightCtrl() {};

 angular.module("app").controller("ctrl", function() {});

In this revised example, the dependencies are specified just once.

As described in the documentation:

Creation versus Retrieval

Note that employing angular.module('myModule', []) will create the module myModule and potentially overwrite an existing module named myModule. To retrieve an existing module, use angular.module('myModule').

For further details, refer to:

Answer 2

The issue arises when the $controller() function is invoked with a string that does not correspond to any of the registered controllers.

Possible reasons for this error include:

A typo in your controller reference.
Failure to register the controller.
A mistake in the name of the registered controller.

Another common cause is inadvertently overwriting the controller by declaring the module dependency multiple times.

INCORRECT

angular.module("app",[]).controller("AddWeightCtrl", addWeightCtrl);
function addWeightCtrl() {};

angular.module("app",[]).controller("ctrl", function() {});

In the above snippet, the second invocation of angular.module("app",[]) overrides the app module and the AddWeightCtrl controller.

BETTER PRACTICE

 angular.module("app",[])

 angular.module("app").controller("AddWeightCtrl", addWeightCtrl);
 function addWeightCtrl() {};

 angular.module("app").controller("ctrl", function() {});

In this revised example, the dependencies are specified just once.

As described in the documentation:

Creation versus Retrieval

Note that employing angular.module('myModule', []) will create the module myModule and potentially overwrite an existing module named myModule. To retrieve an existing module, use angular.module('myModule').

For further details, refer to:

AngularJS attempted to open $modal, but it encountered an error because the controller named <controllername> was not registered

Answer №1

Creation versus Retrieval

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