JavaScript RXJS: observableCreate is not defined

I'm trying to detect when an element gets added to the dom, like so:

import {DOM} from 'rx-dom'; 
let mutationStream = (selector) => { 
    return DOM.fromMutationObserver(getElementsFromSelector(selector), {childList: true, subtree: true }); 
}

But this gives me the error:

Uncaught ReferenceError: observableCreate is not defined

on the line:

call.dom.fromMutationObserver

What am I doing wrong?

Answer:1

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