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"Unable to open catalogue - currently in use"

Ivo Sedlacek
I copied and backuped my C1 catalogues on an external HDD (they include all the photos inside). I tried now to open one - impossible. There is a message "Unable to open catalogue - currently in use by (my name). Catalogue can only be opened when no other users are using it".

What nonsense is this ?? How can I open my catalogues ?
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2 comments

Date Votes
  • Ian Wilson
    Moderator
    Top Commenter
    When you open a catalog, Capture One creates a file called writelock. If for some reason Capture One didn't close down cleanly, that may not have been removed again once the catalog had been closed. You can right-click the catalog file, choose "Show package contents", locate the writelock file and delete it. All should now be well.

    Here's a page showing how this works.



    Ian

    Edited to add: the point of the writelock file is to prevent the corruption and chaos that could result from two users opening the catalog at the same time.
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  • Ivo Sedlacek
    Yes, thank you 😊
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