Why do we need to run npminstall manually in smartedit?

Hi all!

I've faced with issue when we'd try to make artifact for project which is uses smartedit.

In my local machine according to development guide in SAP I should run ant npminstall manually.

But how to run this command automatically when it's needed during building project? For example, in buildcallbacks.xml. In case when I have the code below in extensioninfo.xml task npminstall is not running automatically:

<requires-extension name="npmancillary" />

Thanks!