Error encountered when downgrading a component from Angular v5 or v4 to AngularJS due to an injector issue

I have successfully created a basic angular5 component called HelloComponent:

var HelloComponent = function () {
};

HelloComponent.annotations = [
  new ng.core.Component({
    selector: 'hello-world',
    template: 'Hello World!'
  })
];

Now, I attempted to integrate this component into my angularJS directive like so:

angular.module("app", [])
.directive("helloWorld", ng.upgrade.static.downgradeComponent(HelloComponent))

However, upon running the script, I encountered the following error:

Error: [$injector:unpr] Unknown provider: $$angularLazyModuleRefProvider <- $$angularLazyModuleRef http://errors.angularjs.org/1.6.5/$injector/unpr?p0=%24%24angularLazyModuleRefProvider%20%3C-%20%24%24angularLazyModuleRef

To see a simple example using angular 5 and angularJS, check out: http://plnkr.co/edit/dQJ2tgV2MuInT41ucjq1

Any suggestions on how to resolve this issue?

ADDITIONAL INFORMATION

An example of downgrading a component from v4 to v1 can be found here:

However, when attempting to update my application based on this article, I encountered another error:

Unknown provider: $$angularInjectorProvider

Check out the example for v4 here: http://plnkr.co/edit/9Oxy0QeSg1FYve0cjGYw

A similar example for v5 resulted in the old error message:

Unknown provider: $$angularLazyModuleRefProvider

For a v5 example, visit: http://plnkr.co/edit/eZScm8U41mGuuHJMjApV

Answer №1

To integrate the $$UpgradeModule dependency into your app module, follow these steps:

Old Code

angular.module("app", [])
.directive("helloWorld", ng.upgrade.static.downgradeComponent(HelloComponent))

New Code

var app=angular.module("app", ['$$UpgradeModule']).directive("helloWorld", ng.upgrade.static.downgradeComponent({component:HelloComponent}));

Check out the updated code on Plunker

Answer №2

It seems like there is an issue with including something in your code. Perhaps the path for the script file is not correct.

To resolve this, you can create a new script file, copy the necessary script data into it, and ensure that the correct path is specified in the src property.

The code below is functioning properly for me:

<!DOCTYPE html>
<html ng-app="app">
<head>
    <script data-semver="1.6.5" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.5/angular.js"></script>
    <script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="e5868a9780c88f96a5d7cbd1cbd4">[email protected]</a>/client/shim.min.js"></script>
    <script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="394356575c17534a7909170f170b08">[email protected]</a>/dist/zone.min.js"></script>
    <script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="9be9e3f1e8dbaeb5abb5abb6f9feeffab5aaa9">[email protected]</a>/bundles/Rx.min.js"></script>
    <script src="https://npmcdn.com/@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="73101c011633465d435d43">[email protected]</a>/bundles/core.umd.js"></script>
    <script src="https://npmcdn.com/@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="44272b29292b2a04716a746a74">[email protected]</a>/bundles/common.umd.js"></script>
    <script src="https://npmcdn.com/@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8bfbe7eaffede4f9e6a6e9f9e4fcf8eef9cbbea5bba5bb">[email protected]</a>/bundles/platform-browser.umd.js"></script>
    <script src="https://npmcdn.com/@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="92f1fdffe2fbfef7e0d2a7bca2bca2">[email protected]</a>/bundles/compiler.umd.js"></script>
    <script src="https://npmcdn.com/@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="6e1e020f1a08011c03430c1c01191d0b1c430a17000f03070d2e5b405e405e">[email protected]</a>/bundles/platform-browser-dynamic.umd.js"></script>
    <script src="https://npmcdn.com/@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c4b1b4a3b6a5a0a184f1eaf4eaf4">[email protected]</a>/bundles/upgrade-static.umd.js"></script>
    <link rel="stylesheet" href="style.css" />
    <!--<script src="../NewFolder8/script.js"></script>-->
    <script>
        var HelloComponent = function () {
        };

        HelloComponent.annotations = [
          new ng.core.Component({
              selector: 'hello-world',
              template: 'Hello World!'
          })
        ];

        angular.module("app", [])
        .directive("helloWorld", ng.upgrade.static.downgradeComponent(HelloComponent))
    </script>
</head>
<body>
    <h1>Hello Plunker!</h1>
    <hello-world></hello-world>
</body>
</html>

Answer №3

An issue has arisen where the system is unable to identify the specific provider you are referencing. While I am not an expert in this domain, it is crucial to ensure that the system is correctly informed about which files it should utilize.

Take solace in knowing that you are not the only one facing this predicament.

Upon conducting a search on Google, it appears that the "unknown provider" error typically stems from improper initialization or incorrect file inclusion sequence:

Angular Error: Unknown Provider Troubleshooting

Resolving Angular Error: Unknown Provider Issue

Oftentimes, neglecting to specify the *.js file turns out to be a common root cause.

Error Message: Unknown provider - $routeProvider

If you are encountering a similar error message across various versions, it is evident that a consistent underlying factor exists. The issue lies not in the version but rather in file incorporation, sequencing, and object initiation – follow these steps accordingly.

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