Theo's Typesafe Cult•14mo ago

Nextjs build fails on Docker due to env amid SKIP_ENV_VALIDATION

Hey, I'm building an app with nodemailer inside the nextjs app and trying to build it with docker. The docker build is failing on build stage due to env parameters. I run with the SKIP_ENV_VALIDATION parameter. here is the log output

#16 46.35 TypeError: Cannot set properties of undefined (setting 'mailer')
#16 46.35     at new Mail (/app/node_modules/nodemailer/lib/mailer/index.js:45:33)
#16 46.35     at module.exports.createTransport (/app/node_modules/nodemailer/lib/nodemailer.js:53:14)
#16 46.35     at /app/.next/server/chunks/3367.js:5293:71

#16 46.35 TypeError: Cannot set properties of undefined (setting 'mailer')
#16 46.35     at new Mail (/app/node_modules/nodemailer/lib/mailer/index.js:45:33)
#16 46.35     at module.exports.createTransport (/app/node_modules/nodemailer/lib/nodemailer.js:53:14)
#16 46.35     at /app/.next/server/chunks/3367.js:5293:71

here is the code I initialize nodemailer

import nodemailer from "nodemailer";
import { env } from "~/env.mjs";

export const transporter = nodemailer.createTransport(env.EMAIL_SERVER, {
  secure: true,
});

import nodemailer from "nodemailer";
import { env } from "~/env.mjs";

export const transporter = nodemailer.createTransport(env.EMAIL_SERVER, {
  secure: true,
});

Why and how does building stage of next app checks the issues with env? How to solve it?

1 Reply

parapheenOP•14mo ago

so, the issue seems to be related to the way next "collects pages" during the build https://github.com/vercel/next.js/discussions/35534

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What is "collecting page data" and how to turn it off? · vercel nex...

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Nextjs build fails on Docker due to env amid SKIP_ENV_VALIDATION