How do I fix the error “A JavaScript error has occurred in the main process”?

Question

Problem: How do I fix the error “A JavaScript error has occurred in the main process”?

Hi. I need some tips on how to fix “JavaScript error occurred in main process” error on Mac and Windows devices. I get these pop-ups on my Windows laptop, while my girlfriend gets the same pop-ups on her Mac. I do not know what to do. I tried reinstalling the program that throws this error on his device since it was Teams for Mac, I believe, but it didn’t work. Ideas maybe?

Answer provided

This is because, as you mentioned, the error “A JavaScript error has occurred in the main process” appears on both devices, and the problem is related to the programs in particular. Users refer to apps like Slack, Discord, and Microsoft Teams as being the ones creating issues and triggering the message with an error window.

The particular error “A JavaScript error has occurred in the main process” appears when users attempt to launch any of the programs mentioned above. The window contains additional information about the error, but ordinary users cannot interpret the message correctly, making these details unnecessary.

“A JavaScript error has occurred in the main process” error on Discord or Microsoft Teams, which are other programs that can be fixed with workarounds. Sometimes, downloading the app from another source also fixes the problem through a pop-up that keeps repeating.

It doesn’t matter if the pop-up stating “JavaScript error has occurred in main process” occurred at the same time as an error in Slack or during any other launch of the app, the reason could be the same. Some of the most commonly reported specific causes include corrupted settings in the program itself, required or disabled administrator rights, and old installations.

How to fix the error “A JavaScript error has occurred in the main process”

The best way to fix the “JavaScript error has occurred in the main process” error is to first determine the program in question that is causing all the pop-ups. Of course, we should mention right away that malware is not responsible for any of these problems. These errors are not caused by Windows operating system updates or Catalina. Although some bugs in these updates can trigger unknown performance issues. Repair tools or optimizers like ReimageMac Washing Machine X9 allow you to check for data corruption issues to make sure that you can investigate further and fix the issue once and for all.

Fix “JavaScript error occurred in main process” error on Mac

• You can remove the program that triggered this error for you and reinstall it from another source, so that the installations are correct and safe. The App Store is the source believed to provide a secure application with no bugs that could cause problems.

Check Compatibility to Fix “A JavaScript Error Occurred in Main Process” error on Mac

• You can check if the program is supposed to work on your device’s system. The programs are available in 64 and 32 bits.
• Click on the logo Apple.
  
• Then go to About of this Mac and System Report.
• Click on Software and find Applications

• Check the program information column to see.

Delete folders to fix “JavaScript error occurred in main process” error

• Deleting some folders related to apps like Discord may reset the settings and fix the issue.
• Locate the folder C: Users YourUsername AppData Discord via Windows Explorer.
• If you can’t see the folder AppData, click on Display and check the box next to the Hidden items.

• Delete the folder Discord.

Change the startup type to correct “A JavaScript error occurred in the main process”.

• Open the Run window and type services.msc. Press on OK.
• Locate the service Quality Windows Audio Video Experience and right click on it to find Properties in the menu.
• Go to the tab General.
• Make sure the Start type is set to Automatic.

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