404 route only works with .js extension

[gmencz]

I cloned the starter-express repo and I changed the file extension of the files inside routes/ from .js to .tsx and "normal" routes seem to be working just fine but not the 404 one, the following error is thrown when visiting a route that doesn't exist (in this case the route is /dasdsad):

Error: Could not resolve entry module (app/routes/404.js).
[2]     at error (/Users/gabe/code/learning/remix/my-remix-app/node_modules/rollup/dist/shared/rollup.js:5251:30)
[2]     at ModuleLoader.loadEntryModule (/Users/gabe/code/learning/remix/my-remix-app/node_modules/rollup/dist/shared/rollup.js:18410:20)
[2]     at async Promise.all (index 1) {
[2]   code: 'UNRESOLVED_ENTRY',
[2]   watchFiles: [
[2]     '/Users/gabe/code/learning/remix/my-remix-app/app/entry-server.tsx'
[2]   ]
[2] }
[2] GET /dasdsad 500 313.463 ms - -

The app's structure is the following:

[gmencz]

Nevermind, just realized it says at the docs that the file extension must be .js 😅