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Last updated on
Dec 16, 2025
- Lightroom Classic User Guide
- Introduction to Lightroom Classic
- What's new in Lightroom Classic
- Lightroom Classic Release Notes
- Lightroom Classic technical requirements
- Keyboard shortcuts
- Lightroom Classic FAQ
- Lightroom Classic Key Concepts
- Lightroom Classic tutorials
- Set Preferences for working in Lightroom Classic
- Reset Preferences for working in Lightroom Classic
- Supported image formats
- Workspace
- Import photos
- Specify import options
- Set import preferences
- Import photos from a camera or card reader
- Import photos from a folder on a hard drive
- Import photos automatically
- Import photos from Photoshop Elements
- Import photos from a tethered camera
- Select best photos while importing with Assisted Culling
- The Filename Template Editor and Text Template Editor
- Set up tethered camera support for Fujifilm cameras
- Organize photos in Lightroom Classic
- Face recognition
- Work with photo collections
- Group photos into stacks
- Flag, label, and rate photos
- Use keywords
- Metadata basics and actions
- Save metadata to external sidecar files
- Find photos in the catalog
- Work with video in Lightroom Classic
- Advanced metadata actions
- Use the Quick Develop panel
- Select best photos with Assisted Culling
- Group your photos into a stack
- Process and develop photos
- Develop module basics
- Apply Presets
- Create panoramas and HDR panoramas
- Flat-Field Correction
- Correct distorted perspective in photos using Upright
- Improve image quality using Enhance
- Work with image tone and color
- Edit your images with Color Mixer tool
- Masking
- Apply local adjustments
- HDR photo merge
- Develop module options
- Retouch photos
- Cure red eye and pet eye effects
- Use the Radial Filter tool
- Adjustments with Lens Blur
- Edit and Export in HDR
- Remove Tool
- Remove distracting people
- Remove reflections
- Remove sensor dust in a photo
- Viewing photos
- Export photos
- Work with external editors
- Manage catalogs and files
- Maps
- Photo books
- Slideshows
- Print photos
- Web galleries
- Content Authenticity
- Lightroom and Adobe services
- Troubleshooting
- Technical Support
- Performance Guidelines
- Technical issues
- GPU Issues
- Startup Issues
- Rendering Issues
- Stability Issues
- Miscellaneous Issues
- Workflow Issues
- Catalog Issues
- Sync Issues
Learn how to resolve the failure in opening Lightroom Classic catalog.
Issue
Note
The following dialog box appears in versions 15.0 and earlier versions.
While opening a catalog, you encounter the following error.
Solution
- Ensure that you have admin privileges on the machine.
- Make sure only a single instance of Lightroom Classic is accessing the current catalog in use.
- Ensure the disk has sufficient space.
- Restart the system and then open Lightroom Classic.
If you need further assistance, reach out to our community page or check Learn & Support.
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