For custom apps within SharePoint Online/Office 365 a SharePoint „App Catalog“ is needed and has to be installed and configured before.
Therefor please follow the few steps below:
- Open SharePoint Admin Center (Modern Version) in Office 365
- Go to „Classic Features“
- Click „Open“ under „Apps“
- Click „App Catalog“
- If no „App Catalog“ is created until now, select „Create a new app catalog site“ and click „OK“
- Enter a „Title“, the URL, for example „sites/app-catalog“, the administrator and some resources (e.g. 1000)
- It will take until 10 minutes for the „App Catalog“ to be up and running
- After this time you should be able to open the „App Catalog“ URL (Step 6)
- If you click on „App Catalog“ (Step 4) again you will be redirected to the „App Catalog“ Site (takes up to 15 minutes)
Please wait at least 15 minutes and restart your „SharePoint Extension“ installer. If the new generated „App Catalog“ is not completely deployed , the „SharePoint Extension“ installer will fail and you have to restart the installation process.
Comments are closed.