Backend error when trying to start server

Currently at the “Setting up the backend” video of the React Native series and I am having issues starting the server, the following is the error message that I am receiving:

S C:\Users\Noah\Desktop\Backend> node index.js
throw err;

Error: Cannot find module ‘C:\Users\Noah\Desktop\Backend\index.js’
at Function.Module._resolveFilename (node:internal/modules/cjs/loader:956:15)
at Function.Module._load (node:internal/modules/cjs/loader:804:27)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
at node:internal/main/run_main_module:17:47 {

I have followed the steps in the video (there aren’t many as it is a 2 minute video) however I am not sure why it is doing this. I am using Windows 10 and my node version is V16.17.1

Any help would be appreciated, thanks.