Fatal JavaScript Invalid Size Error 169220804: How to Fix it

This error usually appears only during the development stage

3 min. read

Updated onJanuary 8, 2024

updated onJanuary 8, 2024

Share this article

Improve this guide

Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more

Key notes

Fatal JavaScript invalid size error 169220804 affects web app developers, and in most cases, only the developers will encounter this issue.

This can be a serious problem and it will affect the performance of your app and cause it to crash, so it’s important to address it, and this guide will help you do that.

What causes Fatal JavaScript invalid size error 169220804?

How can I fix the fatal JavaScript invalid size error 169220804?

Before we start:

1. Move react-scripts to devDependencies

A few users also suggested that moving the following to devDependencies helped:@types/* dependencies

2. Reinstall node_modules

3. Downgrade the Node version

What is the fatal JavaScript error?

Fatal JavaScript errors can prevent the code from working properly and they can even stop it altogether. They are usually caused by the following:

The fatal JavaScript invalid size error 169220804 is usually caused by an error in your code, and it can be easily fixed. However, this isn’t the only problem and many reported thatJavascript error occurred in the main process.

In case you encounter other problems, ourJavaScript heap out of memory errorandJavascript void(0) errorguides should be able to help you.

Did you ever encounter this issue and how did you fix it? Let us know in the comments below.

Fatal JavaScript Invalid Size Error 169220804: How to Fix it#

How can I fix the fatal JavaScript invalid size error 169220804?#

1. Move react-scripts to devDependencies#

2. Reinstall node_modules#

3. Downgrade the Node version#

What is the fatal JavaScript error?#