Uncaught ReferenceError: webpackJsonp is not defined

[Vadorequest]

• I have searched the issues of this repository and believe that this is not a duplicate.

I built my Next app and deployed it as I usually do, but when loading the page, I got the following on the browser:

Uncaught ReferenceError: webpackJsonp is not defined in main.js 1:1

Also, all JS interactivity was broken, but the style/design of the website was looking okay.

Here is the beginning of main.js file:

module.exports =
webpackJsonp([0],{

I rebuilt and redeployed the application and it disappeared.

I believe it is because I had a running Next.js app while building, and I was changing the code on it, which trigger other rebuilds. It probably messed up the build process (the first main.js wasn't uglified at all, while the new/fixed version I have now is correctly uglified/onelined)

I'm reporting the issue because I could have not noticed it, maybe something should be done when a build is ran when another build is in process. The main issue is deploying a non-working app to production without noticing it. I agree that's a very particular use case, which is very hard to reproduce. People shouldn't be building while doing modification to the source code with a watcher enabled. =D

[timneutkens]

Not much we can do on our side. You can just build to a different directory and then move the directory to .next afterwards.