Error occurred when attempting to change modules inside Lightroom


Vladimir Popescu
by Vladimir Popescu
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An error occurred when attempting to change modules

Lightroom reported encountering the An error occurred when attempting to change modules message on their PC.

This error message can appear in many situations, in some cases, it happens when you start Lightroom, attempt to change modules, or even while performing other functions.

In this article, we will explore the official troubleshooting steps for dealing with this error.


How to fix An error occurred when attempting to change modules?

1. Install the latest Lightroom update

lightroom adobe website An error occurred when attempting to change modules

  1. Open your Lightroom app -> click on Help.
  2. Inside the Help menu -> select Check For Updates.
  3. Wait for the process to complete and download the latest version to your hard-drive.
  4. Restart Lightroom for the changes to be applied, and check to see if the issue is resolved.

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2. Delete the preference file of Lightroom

laptop on desk with notepad - an error occurred when attempting to change modules. lightroom
In order to re-set the preferences of your Lightroom app, you will need to delete the preference file by dragging it to the Recycle Bin.

Here is where you can find the preference files on your PC:

  • Lightroom Classic -> C: ->Users -> [user name] -> AppData -> Roaming -> Adobe -> Lightroom -> Preferences -> Lightroom Classic CC 7 Preferences.agprefs
  • Lightroom 6 -> C: ->Users -> [user name] -> AppData -> Roaming -> Adobe -> Lightroom -> Preferences -> Lightroom 6 Preferences.agprefs
  • Lightroom 5 -> C: ->Users -> [user name] -> AppData -> Roaming -> Adobe -> Lightroom -> Preferences -> Lightroom 5 Preferences.agprefs
  • Lightroom 4 -> C: ->Users -> [user name] -> AppData -> Roaming -> Adobe -> Lightroom -> Preferences -> Lightroom 4 Preferences.agprefs

After you’ve completed this step, start Lightroom for the preference file to be automatically created again. If this didn’t solve your issue, please follow the next method.


3. Uninstall and re-install your Lightroom app

laptop on desk with glasses and documents - an error occurred when attempting to change modules. lightroom
For Lightroom:

  1. Open the Creative Cloud app -> sign in using your Adobe ID and password.
  2. Select the Apps tab.
  3. Inside the Installed Apps section -> find the Lightroom app -> click the arrow next to Open or Update -> select Manage from the drop-down list.
  4. Select Uninstall and follow the on-screen instructions.
  5. After the uninstall process is completed, restart the Adobe Creative Cloud app -> select the Apps tab -> All apps -> click the Install button next to Lightroom.
  6. Follow the on-screen instructions to complete the setup.

For Lightroom 6 and earlier versions:

  1. Press Win+X keys on your keyboard -> select Apps and features.
  2. Inside the Programs list -> select the Adobe Photoshop Lightroom -> click Uninstall.
  3. If you want to remove the preference files as well, follow the steps at Method 2, above.
  4. After this process is completed -> click this link to visit the official Creative Cloud apps direct download page -> download the Lightroom app for your operating system.
  5. Run and install the application by following the on-screen instructions.

In today’s article, we explored the best troubleshooting methods to deal with the message An error occurred when attempting to change modules inside Lightroom.

Please feel free to let us know if this guide helped you in any way, by commenting below.

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