Nextjs 15.1.6 App Routeur Handler not working with next-intl 3.26.3

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Nodemailer OTP Email Issue in Next.js 15 with next-intl 3.26.3

Hello everyone,

I hope this message finds you well. I'm encountering an issue while trying to implement OTP (One-Time Password) email functionality using Nodemailer in a Next.js 15 application. When attempting to send the email, I receive the following error:

Project Sructure

To provide more context, here is the structure of my app directory

Additional Information

• I'm using Next.js version 15
• The OTP functionality is implemented using Nodemailer
• The error occurs when trying to send the email

Questions

1. Has anyone encountered a similar issue with Next.js 15 and next-intl?
2. Are there any specific configurations or setups required for next-intl in the latest version of Next.js?
3. Could this be related to how I'm structuring my API routes or server-side code?

Any insights, suggestions, or solutions would be greatly appreciated. Thank you in advance for your help!