Activity Monitor crashes every time I launch it

Just saw this happening on my Mac after updating the OS to 14.1. It was fine on macOS 14.0.

Deleting that file did help. Thank you.

EDIT: Started crashing again. It crashes when I try to see the Energy tab. Doesn't crash in other tabs.

Same problem with Sonoma 14.3 on Intel Mac.

The app crashes once entered the energy tab. 100% reproducible.

Have the same problem, Activity Monitor crashes and won't load anymore aafter openning the Energy tab (sonoma 14.2.1). This is so annoying, more after it has been reported for months and Apple did nothing. If only they had multi-billion $ in budget, I guess they could fix it. Oh, wait...

I have a 13-inch, July 2019 two thunderbolt 3 ports, MacBook Pro. Activity Monitor still crashes on launch after updating to Sonoma 14.4.

Omerzafeer wrote:

Activity Monitor crashes every time I launch it. I don't know if it is since updating to Sonoma or not, since I just bought it. This is my first MacBook, so I am not sure if this is a common error. I saw an older thread with the fix “Delete the com.apple.ActivityMonitor.plist file located in /Users/username/Library/Preferences/ and relaunch Activity Monitor.”

I unfortunately am unable to locate the .plist file.

Any fixes?

upgrading to Sonoma.

Seems most unusual to see A.M. crash on opening...

Are you having a bigger issue?

You can try holding the Option key and launch the Activity Monitor.app and compare your results..

Shutting down and restarting the Mac more than once after any "upgrade" will sort many glitches.

I would try those options and compare your results before entertaining the idea of deleting .plist

if no insight or resolve—

the plist is found here—

from Finder>Go>Go To Folder ,copy and paste:

~/Library/preferences/ActivityMonitor.plist

This is happening to me too. Just upgraded to Sonoma a few days ago. Clicking on Energy tab in AM crashes it.

I did a reinstall of macOS Sonoma 14.1 (although installing the same or higher version over an existing installation keeps all settings, configurations, user files & apps intact, a backup is still recommended beforehand) and the problem seem to have gone away. No crashes (yet).

I have the same problem. However, I always faced it when my macbook was running on battery power. I just tried to check when the macbook is connected to the charger and everything works. Maybe this will help you too.

Really? For every little issue the only solution we get from apple experts is to reinstall macOS.

Why do we have to reinstall macOS and go through the painful process every time? We are working individuals and have busy life. Why can't apple experts escalate this issue to higher management and apple can create a software which checks the integrity of all system files and if anything is missing or corrupted. It can replace it.

Once you delete that file, restart your Mac. Better still shut down your Mac then boot it up.

I also have the same question, macbook pro intel，macos 14.1.1

Omerzafeer wrote:

Thank you for letting me know, I was just about to reinstall it. Have you tried this fix posted above? I have not been able to find time to do it myself.

I did a complete wipe of my system partition and did a clean install of macOS Sonoma 14.1. Then restored my Time Machine backup. Unfortunately, Energy tab still crashes the Activity Monitor. Surprisingly, it doesn't do that on macOS Sonoma installed on my external SSD, which too is restored with a Time Machine backup (although the backup dates are slightly different).

I have installed Activity Monitor app from a macOS Mojave installation, and it runs fine without any problem (there are two Activity Monitor apps on my system now: one inside the Utilities folder and another that I copied from macOS Mojave to the Applications folder).

At this point, I think I'll have to do a fresh installation and set everything up from scratch to solve this. There is this problem with the Firewall app too where any changes I make don't stick. But this started from macOS Ventura itself.

Omerzafeer Said:

"Activity Monitor crashes every time I launch it"

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Troubleshooting a Crashing App:

A. Add as a Login Item:

What happens when you add Activity Monitor as a Login Item? Add it as such, log out, and then log back in, seeing if you still get this error.  Go Here: Open Items Automatically when you Log In on Mac - Apple Support

No success?

B. Reinstall the macOS:

Activity Monitor is part of the macOS. So, one option would be to reinstall the macOS to fix any bugs in this app. Nothing would be lost. It's just that misplaced items would be placed back to where they should be and corrupt system files would be replaced by clean files. Go Here: Reinstall macOS - Apple Support. Boot into Recovery Mode (Intel or Silicon).  Important: Prior to installing an update or performing a reinstallation, to prevent data loss, be sure to Back up your Mac with Time Machine.