yes, and you need to check the dependencies in your package.json file.
The WS2801 library uses lightly other function-names, you probably need to check that out
https://www.npmjs.com/package/rpi-ws2801 vs.
https://www.npmjs.com/package/lpd8806-async
I work on an own repository for this one but unfortunaly do not have much time at the moment, you can check that out as well. I thought of an option which sais that you are using ws2801 or lpd8806 and the module handles it … but a lot stuff to do.