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Lightroom won't start anymore

New Here ,
Apr 02, 2023 Apr 02, 2023

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Need some help here. 

Today I was working in Lightroom Classic. Closed it and wanted to continue in the evening but Lightroom wouldn't start anymore. (There has not been an update in the mean time) 

At first nothing happened. I then discided tot delete lightroom and to reïnstall. 

Did this twice, the start up screen appeared but it never opened. 

I even tried to install the previous version but this also isn't the option. 

 

Does anyone have an idea what the problem could be here?
I was in the middle of editing a shoot that I have to deliver soon so I'm a bit worried..

 

 

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correct answers 2 Correct answers

Community Expert , Apr 02, 2023 Apr 02, 2023

This is (probably) a known issue. Adobe has verified this workaround has no risks. Until they can release an update please follow these steps:

  • Close LrC if open
  • Locate metrics.json file
    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

Lightroom should now launch normally.

 

See also this thread and do note that the location mentioned is hidden by default: https://community.adobe.com/t5/lightroom-classic-bugs/p-lrc-12-2-1-fails-to-start-launch-or-is-extremely-slow-launching/idi-p/13673512

...

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LEGEND , Apr 02, 2023 Apr 02, 2023

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Community Expert ,
Apr 02, 2023 Apr 02, 2023

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This is (probably) a known issue. Adobe has verified this workaround has no risks. Until they can release an update please follow these steps:

  • Close LrC if open
  • Locate metrics.json file
    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

Lightroom should now launch normally.

 

See also this thread and do note that the location mentioned is hidden by default: https://community.adobe.com/t5/lightroom-classic-bugs/p-lrc-12-2-1-fails-to-start-launch-or-is-extre...

 

-- Johan W. Elzenga

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LEGEND ,
Apr 02, 2023 Apr 02, 2023

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To build on Johan's reply, deleting the file can be persnickety--see these detailed steps:

https://community.adobe.com/t5/lightroom-classic-bugs/p-lrc-12-2-1-fails-to-start-launch-or-is-extre...

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New Here ,
Apr 02, 2023 Apr 02, 2023

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Thanks a lot! it worked 🙂

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Community Beginner ,
Apr 02, 2023 Apr 02, 2023

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This FINALLY worked for me.  Thanks.

 

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New Here ,
Apr 02, 2023 Apr 02, 2023

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Thanks!! This solved the problem!  Really grateful!

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