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'Unexpected error opening catalog'


New Member
Apr 13, 2020
Lightroom Version
Operating System
  1. Windows 10
After registering for LrC, I am trying to open my catalog, created with LR6, with LrC and i got the message 'Unexpected error opening catalog' . The solutions proposed by Adobe do not work. Any idea?
Sep 29, 2007
Isle of Wight, UK
Lightroom Experience
Power User
Lightroom Version
Cloud Service
Hi Xavier, can you check under Help menu > System Info to see exactly which version number you're using?

Which solutions proposed by Adobe have you tried?


New Member
Apr 13, 2020
Thanks Victoria. See below:

Lightroom Classic version: 10.1.1 [ 202101041610-8c69aa4e ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Home Premium Edition
Version: 10.0.19042
Application architecture: x64
System architecture: x64
Logical processor count: 16
Processor speed: 2,4 GHz
SqLite Version: 3.30.1
Built-in memory: 32508,6 MB
Real memory available to Lightroom: 32508,6 MB
Real memory used by Lightroom: 785,4 MB (2,4%)
Virtual memory used by Lightroom: 717,2 MB
GDI objects count: 581
USER objects count: 1858
Process handles count: 1557
Memory cache size: 0,0MB
Internal Camera Raw version: 13.1 [ 658 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 0MB / 16254MB (0%)
Camera Raw real memory: 17MB / 32508MB (0%)
System DPI setting: 240 DPI (high DPI mode)

I have tried solution 3 below. I cannot find exe file for solution 2. Solution 1 does not seem to be applicable to my situation

Solution 1: Install the Microsoft Visual C++ Redistributable 2012
Solution 2: Run Lightroom Classic as an Administrator.
  1. Open the Program Files/Adobe/Adobe Lightroom folder.
  2. Right-click on the Lightroom.exe file.
  3. Choose Run as administrator.
Solution 3: Change the permissions on your catalog's folder.
  1. Select the folder your catalog is in. By default, this is your Pictures/Lightroom folder.
  2. Right-click on that folder.
  3. Choose Properties > Security > Edit.
  4. Select your user name in the Group or user names section. and click Full Control under Permissions.
  5. Click Apply, then click OK out of all the dialog boxes.
Desktop composition enabled: Yes
Displays: 1) 3840x2400
Input types: Multitouch: Yes, Integrated touch: Yes, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info:
DirectX: NVIDIA GeForce GTX 1650 Ti (

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: C:\Users\xsist\OneDrive\Pictures\Lightroom\Lightroom Catalog.lrcat
Settings Folder: C:\Users\xsist\AppData\Roaming\Adobe\Lightroom

Installed Plugins:
1) AdobeStock
2) Facebook
3) Flickr
4) Nikon Tether Plugin

Config.lua flags: None

Adapter #1: Vendor : 10de
Device : 1f95
Subsystem : 97d1028
Revision : a1
Video Memory : 3964
Adapter #2: Vendor : 8086
Device : 9bc4
Subsystem : 97d1028
Revision : 5
Video Memory : 80
Adapter #3: Vendor : 1414
Device : 8c
Subsystem : 0
Revision : 0
Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: Speakers (Realtek(R) Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x64
Direct2DEnabled: false
Sep 29, 2007
Isle of Wight, UK
Lightroom Experience
Power User
Lightroom Version
Cloud Service
Ok, zip up the catalog - just the lrcat bit - and use www.wetransfer.com to send it to Paul & I at [email protected] and we'll check it works ok here. That should narrow it down a bit.