# NextAuth error on production
**URL:** https://forum.codewithmosh.com/t/nextauth-error-on-production/24616
**Category:** Next.js
**Created:** [January 16, 2024, 1:24pm UTC](https://forum.codewithmosh.com/t/nextauth-error-on-production/24616 "2024-01-16T13:24:53Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@petervel](https://forum.codewithmosh.com/u/petervel)
#### Post date: [January 16, 2024, 1:24pm UTC](https://forum.codewithmosh.com/t/nextauth-error-on-production/24616/1 "2024-01-16T13:24:53Z")
I’ve completed the NextJS course, and my authentication works fine locally, but when I try to login on my Vercel environment I get errors.
I’ve created a new client for production on google:
> **[Google Cloud Platform](https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fconsole.cloud.google.com%2Fapis%2Fcredentials&followup=https%3A%2F%2Fconsole.cloud.google.com%2Fapis%2Fcredentials&ifkv=ASKXGp2O9XtO_oHWftuif9cDC6IHXzxdnK2QoxjHDuvOFQ0OcXLYLbswYmbMkr18NiLlzr0QwEaQ&osid=1&passive=1209600&service=cloudconsole&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S202256703%3A1705411200101998&theme=glif)**
>
> Google Cloud Platform lets you build, deploy, and scale applications, websites, and services on the same infrastructure as Google.
I’ve added the GOOGLE\_CLIENT\_ID and GOOGLE\_CLIENT\_SECRET to my environment variables in Vercel.
My code is located at app/api/auth/[…nextauth]/route.ts as described in the course.
When I try to go to my login page at [https://issue-tracker-beta-eight.vercel.app/api/auth/signin](https://issue-tracker-beta-eight.vercel.app/api/auth/signin)
I get an error message saying
> “There is a problem with the server configuration. Check the server logs for more information.”
In the logs I see
> [GET] /api/auth/session?nxtPnextAuth=session status=500
I also see 1 second later, this log:
```auto
[next-auth][error][MISSING_NEXTAUTH_API_ROUTE_ERROR]
https://next-auth.js.org/errors#missing_nextauth_api_route_error Cannot find [...nextauth].{js,ts} in `/pages/api/auth`. Make sure the filename is written correctly. r [MissingAPIRouteError]: Cannot find [...nextauth].{js,ts} in `/pages/api/auth`. Make sure the filename is written correctly.
at t.assertConfig (/var/task/.next/server/chunks/283.js:6:110918)
at _ (/var/task/.next/server/chunks/283.js:6:104132)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async a (/var/task/.next/server/chunks/283.js:30:19639)
at async e.length.t (/var/task/.next/server/chunks/283.js:30:21055)
at async /var/task/node_modules/@sentry/nextjs/cjs/common/wrapRouteHandlerWithSentry.js:48:32 {
code: 'MISSING_NEXTAUTH_API_ROUTE_ERROR'
}
```
This mentions `/pages/api/auth` which of course doesn’t exist (this project uses app router, not pages). What’s going wrong? Anyone have any ideas? I’ve been stuck on this for a very long time now, and can’t seem to get it working.
---
### Author:  [@petervel](https://forum.codewithmosh.com/u/petervel)
#### Post date: [January 17, 2024, 10:25am UTC](https://forum.codewithmosh.com/t/nextauth-error-on-production/24616/2 "2024-01-17T10:25:12Z")
I’ve just solved it 🙂 I’ll post my fix in case it helps someone else in the future.
Turned out I’d initially called my folder […nextAuth], and in a later commit fixed this by renaming the folder to […nextauth]. This works fine locally, but in git a case-change is apparently not committed, so in my github repo it was still […nextAuth].
`git mv [...nextauth] temp`
`git commit -m "Name fix"`
`git push`
`git mv temp [...nextauth]`
`git commit -m "Name fix part 2"`
`git push`
After Vercel had rebuilt and redeployed everything works now! 🙂
---
### Author:  [@warden](https://forum.codewithmosh.com/u/warden)
#### Post date: [June 8, 2024, 8:40am UTC](https://forum.codewithmosh.com/t/nextauth-error-on-production/24616/3 "2024-06-08T08:40:36Z")
That amazing!
I face the same problem too and fixed it by your method.
Thanks for your sharing! You make my day!!