Lightroom does not open

[CraftyJohn]

I installed the latest version of classic, only to find it would not open.

Anyone else have the same issue?

I am using a macbook with Ventura.

[GoldingD]

Try logging onto your computer using a different user account. Does LrC work?

[Axel Matt]

Please try the following steps:

• Close LrC if open (if the UI isn't visible shut down LR via Taskmanager)
• Locate the file named "metrics.json"
  File Locations: 
  Mac: /Users/<username>/Library/Caches/Adobe/Lightroom/metrics.json
  Win: C:\Users\<username>\AppData\Local\Adobe\Lightroom\Caches\metrics.json 
• Remove or rename the file

Check if Lightroom starts normally.

More infos you'll find here: P: LrC 12.2.1 fails to start/launch or is extremel... – Seite 6 - Adobe Support Community - 13673512