Can I use Ganverse3d extension in Omniverse Kit?

Currently I cannot add the Ganverse3d extension in the tutorial of building your own app with Kit 150. Developing on Nvidia Omniverse - How to Build an App — kit-project-template 105.0 documentation Is these any good way to build an app with this extension feature?

Can you provide more details as to your error please. What do you mean you “cannot add” the extension ?