Add visualsp-online.sppkg to SharePoint App Catalog

When using the VisualSP Online Installation Wizard, to provide support for New Experience (Modern UI) pages you must add the VisualSP Online Extensions application (visualsp-online.sppkg) file to the SharePoint App Catalog and mark it as available to all sites. To do this, follow these instructions.

1. Click here to download visualsp-online.sppkg
2. Visit your Microsoft 365 SharePoint Admin Center
3. Go to Apps > App Catalog

If you already have an App Catalog created, the App Catalog link will open up your App Catalog site collection. It will look like this: If you don't already have an app catalog, here are instructions for creating one.

4. Click on the Apps for SharePoint link in the quick launch. Your page will look like this:

Note: You must be using the Classic view of this library; if it is displaying in Modern view, switch to Classic view.

5. Click Upload and select the visualsp-online.sppkg you downloaded in step 1.
6. Check the box for Make this solution available to all sites in the organization and click the Deploy button:

A successful installation will look like this: If you receive an App Package Error Message stating, "Deployment failed," as shown here, simply delete the .sppkg file and repeat steps 5 and 6 to redeploy.

7. Run, or return to, the VisualSP Site Collection Configuration Wizard and complete the installation.