[Fixed] I am getting an error when I added firestore to my angular app – Angular

Alexei Petrov
angular firebase google-cloud-firestore react-typescript

Quick Fix: Ensure compatibility between the versions of @angular/fire and firebase by upgrading to the latest versions if needed. Check the package’s GitHub repo for updates and fixes.

The Solutions:

Solution 1: Upgrade to the Latest Version of Firebase and @angular/fire

The error you’re facing is likely due to a type mismatch or type expectation issue with the AggregateQuerySnapshot in the rxfire library, which is a dependency of @angular/fire. Sometimes, when you upgrade either of these two libraries, there may be breaking changes or adjustments in their type definitions that cause compatibility issues.

To resolve this error, try upgrading both firebase and @angular/fire to their latest versions. This ensures that you’re using the most up-to-date and compatible versions of both libraries.

Run the following command in your terminal:

npm install firebase@latest @angular/fire@latest

This will install the latest versions of firebase and @angular/fire. Once the installation is complete, rebuild your Angular application. This should resolve the type mismatch error you were encountering.

Remember to check the GitHub repository of the relevant packages for any updates or fixes that may address this issue in future versions.


Why am I getting this error with firestore in my Angular app?

There might be a type mismatch with AggregateQuerySnapshot in the rxfire library due to incompatible Firebase and @angular/fire versions.

How can I fix this error?

Upgrade to the latest versions of @angular/fire and Firebase. Check the package’s GitHub repo for updates and fixes.

Video Explanation:

The following video, titled "how to fix cors error in angular firebase storage - YouTube", provides additional insights and in-depth exploration related to the topics discussed in this post.

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