6 Replies Latest reply on Oct 8, 2015 5:25 AM by rpandita

    After downgrading from Lightroom CC 2015.2 to CC 2015.1 LR start to error message "An error occurred when attempting to change modules."

    anssikumpula Level 1

      Had problems on OS X Yosemite 10.10.5 with Lightroom CC 2015.2 hanging several times so followed advice on forums:

       

      - uncheck "Show 'Add Photos' screen"

       

      After awhile the same day LR would still hang and now totally crash on start not giving any error messages or anything. Followed guides:

       

      - Log out and back in to CC

      - Deleted Lightroom preferences with Option+Shift while clicking the app icon

      - Deleted LR preferences via Finder

       

      Didn't fix, LR still didn't start. Decided to downgrade following guide How to Roll Back to Lightroom 6.1.1 or CC 2015.1 | Laura Shoe's Lightroom Training, Tutorials and Tips:

      - Uninstalled CC 2015.2

      - Reinstalled old CC 2015

       

      Didn't fix the problem. Lightroom said: "An error occurred when attempting to change modules." and the Catalog didn't get loaded. So followed guides:

       

      - Making a new user account and trying to open Lightroom there

       

      Didn't work, didn't start there either, same error message. Decided to try uninstalling and reinstalling old CC 2015 again, this time powering off the laptop inbetween:

       

      - Uninstalled old CC 2015

      - Sign out of CC

      - Rebooted MacBook Pro

      - Sign in to CC

      - Installed old CC 2015 again

       

      Still same error message "An error occurred when attempting to change modules." and can't use LR. Continued following guide https://helpx.adobe.com/lightroom/kb/unable-launch-lightroom-55.html:

       

      - Sign out of CC

      - Renamed folders SLCache > SLCacheold and SLStore > SLStoreold

      - Opened LR and signed in to CC

       

      Still same error message "An error occurred when attempting to change modules." and can't do anything with LR.


      Now I don't know what to do anymore. Please help.