SPFx Error: Couldn’t add this app. Check your network connection and try again

Recently, I was working on a SharePoint Framework (SPFx) list view command set extension. I successfully deployed the solution to the App Catalog initially. After making some functionality updates, I deleted the previously deployed solution and re-deployed the updated one.

However, when I tried to add the app from Apps for SharePoint to my site again, I encountered the following error.

Couldn't add this app. Check your network connection and try again.

At first, I thought it was just a network issue, but it wasn’t the real cause.

In this article, I will explain how to solve the SPFx Error: Couldn’t add this app. Check your network connection and try again.

Solution: Couldn’t add this app. Check your network connection and try again.

When you delete a solution from the App Catalog, SharePoint doesn’t remove it entirely. Instead, it moves the app package to the Recycle Bin, as you can see in the image below.

So, it’s stopping me from adding the list view command set app to my site. So we need to permanently delete this solution from both the Recycle Bin and the Second Stage Recycle Bin.

Look at the image below. After deleting the solution from both recycle bins, I tried to add the App, and it successfully added to my SharePoint site.

So, this way you can solve this error. I hope you found this article helpful! This type of error occurs not only in SPFx extensions but also in web parts. To resolve the issue, we need to permanently delete the solution from both recycle bins.

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