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

its because more "js" files in your react Application. You can build your application after making some Changes in package.json like below of code:

"scripts": {
        "start": "react-scripts --max_old_space_size=4096 start",
        "build": "react-scripts --max_old_space_size=4096 build",
        "test": "react-scripts test",
        "eject": "react-scripts eject"
      },