MacOS High Sierra , cannot open application because it may be damaged or incomplete

So I was downloading Xbox 360 controller drivers and then it asked me to restart my mac, then i when i log in my computer functions as normal but some applications show this message: 'can not open application because it may be damaged or incomplete', my first instinct was to restart my computer but it only made it worse happening to ALL my finder applications and files. Please Help my mac is unusable at this point!!!!



I tried A. 'fake reinstalling macos' (without deleting files)

B. First Aid w/ disk utility

C. Apple support


I don't want to reinstall mac os entirely so if anyone can help it would be greatly appreciated.

Answered by DanielFromTheUS in 304043022

I deleted files in the /private/var/folders (Excluding zz) and that worked..

Those drivers most likely want to do things with the GPU they've never done before ; ) The overflow of graphics processing patches from all our favorite companies indicate this was a widespread disruption.

Why this is happening (educated opinion):

Features were pulled and then reintroduced in these betas, effectively creating a 1:6 chance of getting everything right. From Microsoft down to DisplayLink, each new driver patch comes with a High Sierra disclaimer for this reason.


Then came the upgrade nightmares we see now (overflowing console errors from above features since abandoned, etc.). None of which existed on the beta releases and somehow appear on clean installs and upgrades.

What you can do trace the bug:

(Look in your utility folder or CMD+Space to find these two applications)

  • Launch Activity Monitor and look to see if kernel_task is eating memory (indicative of runaway/unresponsive process)
  • Open Console and navigate to the errors and faults tab
  • Monitor the 'all messages' log when you launch an app known to crash to pinpoint what may cause the issue


Other things that may help:

  • Delete the cache folders from these applications in all system and user folders; it helped me. The requests were pulling in bad .plist data.
  • Reset the PRAM (command+option+p+r)
  • Reset the SMC if you connect peripherals or use USB-C power
  • Contact Microsoft directly for support (good luck).
  • Going outside for a moment and contemplate downgrading to 10.13.4 if you're not actively developing for the new macOS on that machine.


Looking forward to the next release as well as a response from Apple regarding several of these tickets.

Accepted Answer

I deleted files in the /private/var/folders (Excluding zz) and that worked..

MacOS High Sierra , cannot open application because it may be damaged or incomplete
 
 
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