node.js – Buffer() Deprecation warning trying to run any NodeJS script under IIS

I’ve read over all of the related Buffer() deprecation threads but still don’t have a solution for my situation.

I have NodeJS installed on a Windows server and have it connectd to IIS via iisnode, urlrewrite, etc, etc using reverse proxy. When I go to run the app, I get the error about Buffer() being deprecated. Thing is, the code I’m running is simply this:

console.log("hi")

I have the following packages installed:

express
fs
http
path
readline
url

So I’m wondering if one of those packages is to blame. I’m a complete noob at NodeJS and such so I’m totally lost here… what steps to take, etc. It doesn’t help that the server I’m trying to run this on isn’t allowed to download stuff from the internet. If I want to add packages, I have to download them elsewhere and copy them over (via slow vpn).

In any case, if one of those packages is at fault, what’s the fix? Thank you.