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_Harry_R_Matthews_
Participant
October 22, 2008
Answered

Lightroom catalog cannot be opened because another application already has it opened

  • October 22, 2008
  • 41 replies
  • 123397 views
    This topic has been closed for replies.
    Correct answer _DW_Harrison_
    Try looking into whatever directory your catalog is in and deleting the ".lock" file with the same name as your catalog.

    41 replies

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    _Harry_R_Matthews_Author
    Participant
    October 22, 2008
    I get this error message when I attempt to open my usual catalog; a new catalog opens OK. The problem began after a spontaneous reboot (never happened before or since) when Lightroom was loading. Re-starting the computer doesn't help. How can I unlock the catalog?

    Windows Vista 64, Lightroom 2. 4GB RAMM, 2.6 GHz quad core processor, plenty of hard drive space.
      C
      caitl46442452
      Participant
      April 10, 2016

      How do you find the .lock file?

        dj_paige
        dj_paige
        Legend
        April 11, 2016

        The .lock file is in the same folder as your catalog file. If you don't know what folder that is, then use your operating system's search feature to search for .lock files.

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