Question 289603 in Javascript Question posted in
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Javascript – Heap out of memory when building

I’m receiving the error below when trying to build and deploy our react application.

FATAL ERROR: Reached heap limit Allocation failed – JavaScript heap out of memory

Whereas I think that this is purely a JavaScript issue, I’m not sure whether I can rule out anything related to our cloud setup: A bit bucket pipeline which pushes the bundle to an S3 bucket (AWS) and is exposed via a Cloudfront distribution (AWS).

I’ve searched for a solution, and saw that this could be solved by increasing the max_old_space_size. I changed the react scripts as follows (added –max_old_space_size=6000), but this did not do the trick.

"scripts": {
   ...
  "build:dev": "REACT_APP_ENV=development npm run build --max_old_space_size=6000",
}

Any help would be incredibly helpful.

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2

Answers


  1. 0

    In my case the problem was caused by enabling source maps for sentry so I can get more readable stack traces…

    Everything’s fine after I disabled it.

    EDIT: I actually removed everything sentry-related from my vite.config.js

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  2. 0

    Try this script

        "scripts": {
  "build:dev": "NODE_OPTIONS=--max_old_space_size=6000 REACT_APP_ENV=development npm run build",
}
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