Unable to Import Customization in VBS

Summary:

Created another post as advise in -

We are trying to import the customization but getting error in package deployment (attached)

With reference to above post, its been identified that extension.json and vb-extension.json both files are present in the source.

So, I merged extension.json into vb-extension.json then deleted the extension.json. But after that, when again tried to import the customization, it is creating a extension.json file again.

What could be the issue ?

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