P: Headlights.dll error

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Community Beginner ,
Oct 27, 2021 Oct 27, 2021

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After downloading the new version 11.0 of LRC, it will not start. I get an error message: The procedure entry point SetThreadDescription point could not be located in the dynamic link library ......... Headlights.dll.

Have googled for solution and have unistalled, restarted and installed again - no luck!

Please help.

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correct answers 2 Correct answers

Adobe Employee , Oct 28, 2021 Oct 28, 2021
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Adobe Employee , Oct 27, 2021 Oct 27, 2021
Some of our customers have reported success clearing this error by using the the Adobe Cleaner Tool during their reinstall.  https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html 

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Adobe Employee ,
Oct 27, 2021 Oct 27, 2021

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Try following this procedure in this order and see if it cures the issue:

 

This procedure works for both Lightroom Classic and Lightroom Desktop.

If you are using Lightroom Desktop it can change the location of your local storage. Please review this setting after resetting preferences. 

 

Reset Procedure:

1. Close Lightroom.

2. Hold down [Alt/Opt]+[Shift] while restarting Lightroom.

3. Overwrite the Preferences when prompted by the dialog.

4. Close Lightroom.

5. Restart Lightroom.

 

Then

 

Clean Lightroom Install Procedure

  1. Close Lightroom
  2. Restart the computer
  3. Use the Adobe Creative Cloud App to uninstall Lightroom
  4. Restart the computer
  5. Install Lightroom via the Creative Cloud App without launching any other programs.
  6. Restart the computer
  7. Launch Lightroom
  8. Wait 5 minutes
Rikk Flohr - Customer Advocacy: Adobe Photography Products

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Community Beginner ,
Oct 27, 2021 Oct 27, 2021

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Hi,



I tried your solution, but it did not work.

As soon as I follow step 2 of the Reset Procedure, the error message pops
up.

I then proceeded to do the "Clean Lightroom Install Procedure", but also did
not work.

Any other suggestions?

How do I go back to previous version of LRC?



Inus Marais

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Community Beginner ,
Oct 27, 2021 Oct 27, 2021

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I tried your solution, but it did not work.

As soon as I follow step 2 of the Reset Procedure, the error message pops up.

I then proceeded to do the “Clean Lightroom Install Procedure”, but also did not work.

Any other suggestions?

How do I go back to previous version of LRC?

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Adobe Community Professional ,
Oct 27, 2021 Oct 27, 2021

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Please see here if you'll go back to a previous version.

https://helpx.adobe.com/download-install/using/install-previous-version.html

 

In this document it will be shown for Photoshop, but it's the same for Lightroom.

 

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Community Beginner ,
Oct 27, 2021 Oct 27, 2021

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Thanks Axel,

It worked and at least now I can keep on working on my photos with the previous version.

Hope to download v11 soon, but it seems there are (a few) bugs they need to sort first.

Thanks!

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Adobe Employee ,
Oct 27, 2021 Oct 27, 2021

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Can you supply your installed Windows 10 Version number?

Rikk Flohr - Customer Advocacy: Adobe Photography Products

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Community Beginner ,
Oct 27, 2021 Oct 27, 2021

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Windows 10 Enterprise 2016 LTSB, updated to version 2021-10

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Adobe Employee ,
Oct 27, 2021 Oct 27, 2021

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Some of our customers have reported success clearing this error by using the the Adobe Cleaner Tool during their reinstall. 

https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html 

Rikk Flohr - Customer Advocacy: Adobe Photography Products

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Adobe Employee ,
Oct 28, 2021 Oct 28, 2021

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Investigating

Rikk Flohr - Customer Advocacy: Adobe Photography Products
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New Here ,
Nov 06, 2021 Nov 06, 2021

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Same problem, Windows 10 ltsb 1607. Adobe Cleaner Tool did not help.

Had to roll back to LrC 10.4.

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New Here ,
Nov 21, 2021 Nov 21, 2021

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Bonjour,

 

Suite à un changement de PC j'ai installé lightroom sur ce dernier, l'installation se fait sans problème mais à l'ouverture de l'application, j'ai un message point d'entrée introuvable, voir copie d'écran. 

Quelle est la solution ?

 

Merci de votre aide.

 

Fred

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LEGEND ,
Nov 21, 2021 Nov 21, 2021

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Community Beginner ,
Nov 22, 2021 Nov 22, 2021

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Sorry, no solution yet. Nothing works.

Will need to wait for update??

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New Here ,
Nov 23, 2021 Nov 23, 2021

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Same problem here also. I was able to update LR to v.11 with no problems on my home computer, but could not do it on my work computer, which are both Windows 10. It downloads fine but gives me the "...Headlights..." error when trying to start LR.

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Community Beginner ,
Nov 26, 2021 Nov 26, 2021

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LATEST

Still no joy! Lightroom issued an update version 11.0.1 (all bugs fixed!??), but still the same "headlights.dll" problem.

Had to revert to version 10.4 to work.

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