Node.js app works locally but heroku says missing module

Question

I made a simple chat application using Node.JS and Socket.IO, everything works fine locally, but when I push it to heroku it gives me an application error, when I check the logs, this is the error: ``` Error: Cannot find module 'indexof' at Function.Module._resolveFilename at Function.Module._load at Module.require at require at Object. at Module._compile at Object.Module._extensions..js at Module.load at Functin.Module._load at Module.require ``` So I figured out that indexof is a module that Socket.IO uses, and it is in my node_modules folder, but for some reason either it's not being pushed to heroku or it's just not being recognized. I reinstalled my modules 5-6 times and recreated the app but it's still givi…

Accepted Answer

Alright so after 2 hours I figured the problem out, multiple folders named "emitter" that contained the indexof module also had a gitignore file that made git ignore the module, no idea why that was even there, but deleting them fixed the problem

Node.js app works locally but heroku says missing module

Solution

Problem