Express: http.ServerResponse is undefined

Created on 22 May 2018 · 8Comments · Source: expressjs/express

Hey there, I got this error (like #3592) when trying to compile a react app which was created by create-react-app. It uses express to get socket.io running.

Node.js: 8.11.1
Express: 4.16.3

I've uploaded the code and instructions how to run the app here.

question

Source

EleosOS

Most helpful comment

how did you solve it?

ahmad-ali14 on 24 Jan 2020

👍2

All 8 comments

From the code you posted, it looks like you are trying to run express in the browser. I say this because the express import is in a file which also has document.getElementById. This is not supported, and I am guessing this code was not generated by create-react-app. Not sure what you are going for with the posted code, so I cannot help more than that, sorry.

wesleytodd on 22 May 2018

Yeah it was because of that, I've split the server into a seperate file. Now I just need to figure out how to make them work with each other, but I'll hopefully figure this out on my own. Thanks for the tip!

EleosOS on 22 May 2018

No problem. Good luck!

wesleytodd on 22 May 2018

I'm having the same issue with my server, but I don't understand how to solve it. When you say you split the server into a separate file, what exactly does that mean? It's my first time trying to set up a server, and I was under the impression that the "server" was actually a bunch of different files working together.

Jazy1618 on 6 Aug 2019

Hey @Jazy1618, I think you should post some code examples on Stack Overflow. The OP was not an express bug, and my guess is that your issue is also not. There is also a Gitter for the express community were you can find help. https://gitter.im/expressjs/express

I was under the impression that the "server" was actually a bunch of different files working together.

This is true, and my assumption based on lack of information from the OP is that it was the code which creates the express instance which was moved to a separate file.

wesleytodd on 6 Aug 2019

Oh, thank you! I'll post it on the express Gitter with some code.

Jazy1618 on 6 Aug 2019

👍1

@EleosOS - did you find solution for same error i got with react webpack.
TypeError: Cannot read property 'prototype' of undefined