P: ExtractPreviews script in help article always fails

[John R Ellis]

The ExtractPreviews script in this help article:

https://helpx.adobe.com/lightroom-classic/kb/extract-previews-for-lost-images-lightroom.html 

doesn't work in LR 14.0.1 on Mac OS 14.6.1 or Windows 11. No matter which photos are selected, it always produces this error:

This appears in the console log when you run the script:

2024-11-24 11:54:29.038 Adobe Lightroom Classic[77127:11037041] Could not open file "/Users/john/Lightroom/cats/Test-14/Test-14 Previews.lrdata/0/062F/062F71E0-1BE7-43EA-B951-332C8CF33405-2bbfa387aba361443ffb2e579b214e8c.lrprev"
    0: field    parseMultiSectionFile          - C
    1: upvalue  ?                              - 71:134+5
    2:          [unnamed]                      - 108:205+4
    3: global   pcall                          - C
    4: method   next                           - 187:445+27
    5: upvalue  ?                              - 1438065897:158+21
    6: upvalue  ?                              - 1438065897:489+11
    7: upvalue  ?                              - 1478146055:232+7
    8:          [unnamed]                      - 1131627717:301+11
    9: global   pcall                          - C
   10:          [unnamed]                      - 1131627717:313+21
   11: method   handleResponse                 - 1131627717:526+84
   12: method   handleResponse                 - 435542093:498+14
   13:          [unnamed]                      - 435542093:442+45
   14: global   pcall                          - C
   15: method   processPendingResponses        - 435542093:549+31
   16:          [unnamed]                      - 435542093:331+6
<end>

That error message indicates that the script, though advertised as being for LR 13.3 and later, is still looking for ".lrprev" files in the pre-13.3 preview cache format.

[Mohit Goyal]

Hi John,

Thank you for posting this question. I have shared your query with the product team to check if it is feasible doing with the latest version of Lightroom Classic. This option is very helpful when you don't have access to the original images. I will update you once I hear anything.

Thanks,
Mohit

[John R Ellis]

Thanks Mohit. Note that the help page says, "Extracted preview script for Lightroom Classic 13.3 and later." If the script isn't supported in LR 14, then the bug is that the help page needs to be updated to say that explicitly.

[Mohit Goyal]

Hi John,

We're able to reproduce this at our end and logged a bug. We will share an update with you all here.

Thanks,

Mohit

[Sunil_Bhaskaran]

Please check the Helpx page now. This issue is fixed. 

Thanks,
Sunil

[John R Ellis]

Very good, I'll let the original thread know.

[Rikk Flohr: Photography]

Greetings all, 

A new update for Adobe Photography Products has been released.  The December update contains an update for this issue. 

If you do not see the update in your Creative Cloud Application, you can refresh it by hitting [Ctrl/Cmd]+[Alt/Opt]+[ R ].

Note: It may take up to 24 hours for your update to be available in your Creative Cloud app.

Thank you for being so patient.

[defaultz450rk3zctwv]

Despite what the latest comment says I have updated and it still does not work!

[John R Ellis]

@defaultz450rk3zctwv: "Despite what the latest comment says I have updated and it still does not work!"

I tested again with my LR 14.1 / Mac, and the script extracted previews as its supposed to.

Perhaps delete the existing script from the Scripts folder and start the instructions from scratch:

https://helpx.adobe.com/lightroom-classic/kb/extract-previews-for-lost-images-lightroom.html

And if that doesn't work, please describe in more detail what you're seeing or not seeing.