Couldn't find ExtensionPackage without an ID - Adobe-Launch API

Question

Calling reactor.reviseExtension() from Adobe's reactor-sdk-javascript is returning this:

FetchError: 409 Conflict ('Couldn't find ExtensionPackage without an ID') on POST https://reactor.adobe.io/properties/******************************/extensions

Answer 1

The underlying error here is likely due to one of two issues. Prior to making the reviseExtension call, you’ll want to make sure your POST body for Extension supplies a relationship to an ExtensionPackage. That ExtensionPackage must exist and be available for use on the Property.

Ref: https://developer.adobelaunch.com/api/reference/1.0/extensions/create/