running next build works on windows, but not on linux VPS

[icy palm]

info  - Linting and checking validity of types  
info  - Creating an optimized production build  
Failed to compile.

./pages/api/user/advertiser/cancel.js
Module not found: Can't resolve './././././models/Advertiser' in '/var/rovertise/pages/api/user/advertiser'

./pages/api/user/advertiser/cancel.js
Module not found: Can't resolve '../../../../models/Ad' in '/var/rovertise/pages/api/user/advertiser'

./pages/api/user/advertiser/create.js
Module not found: Can't resolve '../../../../models/Advertiser' in '/var/rovertise/pages/api/user/advertiser'

./pages/api/user/advertiser/create.js
Module not found: Can't resolve '../../../../models/Ad' in '/var/rovertise/pages/api/user/advertiser'

./pages/api/user/advertiser/index.js
Module not found: Can't resolve '../../../../models/Advertiser' in '/var/rovertise/pages/api/user/advertiser'

On my windows machine it runs just fine.

(i tried changing the paths by doing ...... and ./././ etc)

[icy palm]

also has same issue on vercel, my guess is it's something to do with linux

[thorn hazel]

sounds like a casing issue

linux is case sensitive

[thorn hazel]

(ping)

[icy palm]

thank you so much!

now I'm experiencing another error that says

TypeError: Cannot read properties of null (reading 'useState')

(this happens on a ton of pages)

[thorn hazel]

you are using useState in a server component

which is not allowed

mark your component as a client component

[icy palm]

so i need to add 'use client'; the the top of all of my page files?

[thorn hazel]

no, check your components for what should be client side and what should be server side

technically yes you can just add use client to everything

but that's bad practice

[icy palm]

so i put use client over whats a client component?

is that good practice

[thorn hazel]

just go read https://beta.nextjs.org/docs/rendering/server-and-client-components