How to fix “FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory” error

Question

I\'m trying to deploy a reactjs application to heroku. While compiling assets, the build fails and produces this error:

-----> Ruby app detected
----->         


        

Answer 1

That problem is related with large files in your project.

I'm using create-react-app, and I got that error, after doing some search, it seems one solution is this.

Put in .env file:

GENERATE_SOURCEMAP=false