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Participant
September 28, 2026
Answered

Accidentally broke LR and Creative Cloud

  • September 28, 2026
  • 4 replies
  • 32 views

I was cleaning up my computer but now I have three problems.

  1. When I launch Light Room Classic I get the following error:

?;0: attempt to index field ‘_nglController’ (a nil value)

I have tried to manually reset my preferences as another thread indicated (instructions here https://helpx.adobe.com/lightroom-classic/desktop/introduction-to-lightroom-classic/reset-preferences.html?linkId=100000432836124) but this did not work.

  1. When I enter develop mode in LR Classic I can’t get an image to show to actually develop. I do get to see the images in the library, but the screen stays grey if I select an image to develop.
     
  2. I cannot launch Adobe Creative Cloud, it does still give me notifications that there are updates, but when I try and open it it just fails to launch and then gives a notification that it is unable to update (though it is unable to open).

Before I break more, what is now the best course of action? Uninstall everything Adobe and make sure all associated files are deleted before I reinstall everything? Or something else? 

 

    Correct answer Ian Lyons

    Given that you’ve probably removed some core components of LrC and more importantly the Creative Cloud app, it’s probably best that you use the Cleaner tool. I’ve provided the first link below. However, read info at second link first as it provides some guidance on preparing to run the tool 

     

     

    https://helpx.adobe.com/uk/creative-cloud/apps/troubleshoot/diagnostics-repair-tools/run-creative-cloud-cleaner-tool.html

     

     

    https://helpx.adobe.com/uk/creative-cloud/apps/troubleshoot/diagnostics-repair-tools/prepare-to-run-creative-cloud-cleaner-tool.html

    4 replies

    Participant
    September 28, 2026

    Thank you, I will have a close read before giving it a shot. 

    Participant
    September 28, 2026

    I should add I am on a Windows machine.

    Ian Lyons
    Community Expert
    Ian LyonsCommunity ExpertCorrect answer
    Community Expert
    September 28, 2026

    Given that you’ve probably removed some core components of LrC and more importantly the Creative Cloud app, it’s probably best that you use the Cleaner tool. I’ve provided the first link below. However, read info at second link first as it provides some guidance on preparing to run the tool 

     

     

    https://helpx.adobe.com/uk/creative-cloud/apps/troubleshoot/diagnostics-repair-tools/run-creative-cloud-cleaner-tool.html

     

     

    https://helpx.adobe.com/uk/creative-cloud/apps/troubleshoot/diagnostics-repair-tools/prepare-to-run-creative-cloud-cleaner-tool.html

    Participant
    September 29, 2026

    Thank you so much, it worked!