Скачать или смотреть Resolving the ERROR in Angular: Missing Dependencies for @ angular/elements

Learn how to fix the Angular dependency error related to `@ angular/elements`. Follow our step-by-step guide to smoothly set up your Angular web components.
---
This video is based on the question https://stackoverflow.com/q/66813563/ asked by the user 'Apoorva Chikara' ( https://stackoverflow.com/u/7025699/ ) and on the answer https://stackoverflow.com/a/66876539/ provided by the user 'Apoorva Chikara' ( https://stackoverflow.com/u/7025699/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: ERROR in The target entry-point "@ angular/elements" has missing dependencies:

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Resolving the ERROR in Angular: Missing Dependencies for @ angular/elements

If you're working with Angular 9 and trying to create a web component using @ angular/elements, you might encounter the frustrating error message indicating that certain dependencies are missing. This situation can leave developers scratching their heads, especially when prior troubleshooting steps do not seem to resolve the issue. In this guide, we’ll walk you through the problem and offer a clear, step-by-step solution to help you get back on track.

The Problem at Hand

When attempting to integrate @ angular/elements, you might see an error similar to:

[[See Video to Reveal this Text or Code Snippet]]

This error can arise from multiple underlying issues, primarily related to proper installation and configuration of the required packages. The following factors might contribute to this error:

Outdated or incompatible package versions

Corrupted installation of dependencies

Incomplete installation processes

As indicated by the original scenario, the command to add @ angular/elements to your project may fail, giving you messages about missing modules or skipping installation due to existing packages.

Steps to Resolve the Missing Dependencies Error

Fortunately, resolving the issue is often straightforward. Just follow these steps carefully:

Step 1: Remove Existing node_modules

Start by clearing out your current node_modules folder, where all dependencies are stored. This ensures that any corrupt or problematic packages are removed.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Clear the npm Cache

Next, clear the npm cache to remove any remnants of old packages that might be conflicting. This can help in initiating a fresh installation of packages.

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Reinstall the @ angular/elements Package

Now you can reinstall the @ angular/elements package. Make sure you're specifying the appropriate version compatible with your Angular setup.

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Add @ angular/elements to Your Angular Project

Once you have reinstalled @ angular/elements, add it to your Angular project using the Angular CLI.

[[See Video to Reveal this Text or Code Snippet]]

Why This Works

The core of the issue is often tied to improperly installed dependencies. The original errors indicate that @ angular/elements was either not installed correctly or is missing essential dependencies like @ angular/core and rxjs. By following the steps outlined above, you effectively ensure:

All previous, potentially faulty package versions are removed.

A clean cache prevents old errors from resurfacing.

The latest compatible versions of essential packages are installed.

Conclusion

By meticulously following the steps to clear previous installations and reintroducing the necessary dependencies, you can resolve the issues surrounding @ angular/elements. With everything in place, you'll be able to continue your work on web components in Angular smoothly, free from the hindrance of dependency-related errors.

Now you can confidently move forward with your Angular projects using @ angular/elements. Happy coding!