Fixing the Module not found Error: Resolving 'rxjs/operators' in Angular 13

Описание: Are you facing the `Module not found: Error: Can't resolve 'rxjs/operators'` error in your Angular 13 application? Discover how to resolve this issue efficiently and smoothly.
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This video is based on the question https://stackoverflow.com/q/70589846/ asked by the user 'Nimatullah Razmjo' ( https://stackoverflow.com/u/2790266/ ) and on the answer https://stackoverflow.com/a/70810256/ provided by the user 'Nimatullah Razmjo' ( https://stackoverflow.com/u/2790266/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving the Module Not Found: Can't Resolve 'rxjs/operators' Error in Angular 13

Upgrading to Angular 13 has brought some fantastic new features and improvements, but it may also lead to unexpected errors during your application build process. One common error that developers encounter is the Module not found: Error: Can't resolve 'rxjs/operators'. This error can be frustrating, especially when you're eager to see your application in action. In this guide, we'll dive into the details of this error and guide you through a straightforward solution.

Understanding the Error

When you upgrade to Angular 13 and try to build your application, you might see the following error message:

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

This indicates that the module rxjs/operators cannot be found in the specified path. In Angular 13, the request for this module has changed due to stricter module resolutions, particularly with ECMAScript Modules (ESM), which is why you encounter this issue.

Why This Error Occurs

The primary reasons for this error include:

RxJS Version Compatibility: The version of RxJS you are using may not be compatible with Angular 13.

Changes in Module Resolution: Angular 13 enforces a stricter module resolution process. Hence, all module imports must include their extensions explicitly, such as .js or .mjs.

How to Resolve the Issue

To fix this issue, follow these simple steps:

Step 1: Update RxJS

As mentioned in the response from a developer who faced this issue, updating your RxJS version to 7.4.0 can rectify this problem. To do this, you need to change your package.json file as shown below:

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After updating the version in package.json, run the following command to install the updated version of RxJS:

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Step 2: Verify Imports

Ensure that your code or any third-party libraries are using the correct import statements. You need to explicitly specify the .js extension in the import statements if it is required. For instance, ensure you have something like this in your code where you might be using RxJS:

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

Step 3: Rebuild Your Application

Once you've updated RxJS and checked your imports, it’s time to rebuild your application. Run the following command:

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

Monitor the output for any errors. If everything is set correctly, you should see that the build completes without encountering the rxjs/operators error.

Conclusion

Upgrading to Angular 13 brings many enhancements, but it also requires paying close attention to module compatibility and resolution. By simply updating your RxJS version to 7.4.0 and ensuring your module imports are correct, you can resolve the Can't resolve 'rxjs/operators' error efficiently. We hope this guide helps you in overcoming this challenge and lets you focus on building your application with Angular 13.

If you run into any further issues or have questions, feel free to leave a comment below! Happy coding!