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Error using the Publishing Service in Lightroom Classic 12

Community Beginner ,
Nov 22, 2022 Nov 22, 2022

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While publishing photos (a single one or a collection set as well) LrC always produce the following error message:

readMetadata: Error when Lightroom
attemps to process a catalog master
image file: "dng_error_file_not_found"
(look at the part after "dng_error" for
a clue to the problem)

Later apears a window with a list of not rendered photos preceded of this message:

Einige Exportvorgänge wurden nicht gerendert.
Unbekannte Fehler. Dieses Foto wurde nicht gerendert.
or in english
Some export operations were not performed
An unknown error occurred. This photo was not rendered.

All the listed photos are exist on the HD as DNG-Files. They appear in the LrC catalog with all their metadata attributes.
They also could without any problems be exported to HD by using the same parameters as in the Publishing Service.

Consequently the Publishing Service of LrC is not usable.

The same problem already occurred in LrC 11.5 so I was forced to downgrade LrC to version 11.4.


Lightroom Classic-Version: 12.0.1 [ 202210260744-9e008017 ]
OS: Windows 10 - Home Premium Edition, version: 10.0.19044

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correct answers 1 Correct answer

Community Beginner , Nov 24, 2022 Nov 24, 2022
quote

I found only one other relevant instance of this error, which you also found:

https://community.adobe.com/t5/lightroom-classic-discussions/ls-classic-10-4-error-using-publishing-service/m-p/12445540

 

Another suggestion: ...Try creating a new instance of the Hard Drive publish service...

@johnrellis

Unfortunately, a new instance doesn't behave any better.
But I found out that the bugs were caused by two plugins, Timothy Arme's "LR/Mogrify 2" and Jeffrey Friedl's “Metadata Wrangler” Export Filter, whic

...

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LEGEND ,
Nov 22, 2022 Nov 22, 2022

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Please post a screenshot, library module, grid view, with folders panel shown. Looking to see if their are ? and ! marks, thinking missing photos

see:

https://www.computer-darkroom.com/lr2_find_folder/find-folder.htm

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Community Beginner ,
Nov 22, 2022 Nov 22, 2022

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This error currently affects any photo in any of my collections.
None of this photos are marked with "?" or "!" in the library module. They were neither moved nor missing.
All the photos are stored on an internal HD. It is still possible to develop this photos and also to export
them to any location.

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LEGEND ,
Nov 22, 2022 Nov 22, 2022

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"Graphics processor information:
DirectX: NVIDIA GeForce GTX 1650 (31.0.15.1694)
Initial status: GPU is supported by default for image processing
User Preference: GPU enabled for export"

 

In Preferences > Performance, try unchecking the option Use GPU For Export.

 

Also, your graphics driver (31.0.15.1694, 516.94)) is about four months old.  LR is constantly tripping over bugs in graphics drivers, so update to the latest (526.98) by going directly to Nvidia.com.  Try the Studio driver first, rather than the Game Ready Driver (Studio drivers are supposedly better tested with creative apps.)

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Community Beginner ,
Nov 22, 2022 Nov 22, 2022

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Hi John, it has no effect whether GPU support is enabled or even completely disabled: the error still occurs.
Installing the latest version of the NVIDIA Studio Driver (31.0.15.2698) has no effect as well.

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LEGEND ,
Nov 22, 2022 Nov 22, 2022

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Which publishing service are you using?

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Community Beginner ,
Nov 23, 2022 Nov 23, 2022

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I use the disk publishing service only. The target disk is an internal HD,
so the same one as the disk used for storing the source photos as DNG
files. There are enough free space on this disk.

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LEGEND ,
Nov 23, 2022 Nov 23, 2022

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I found only one other relevant instance of this error, which you also found:

https://community.adobe.com/t5/lightroom-classic-discussions/ls-classic-10-4-error-using-publishing-...

 

Another suggestion: Rarely, LR has been known to corrupt export presets and definitions of publish services. Try creating a new instance of the Hard Drive publish service (right-click Hard Drive under Publish Services and do Create Another Publish Service).  Does that new instance also experience errors?

 

 

 

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Community Beginner ,
Nov 24, 2022 Nov 24, 2022

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quote

I found only one other relevant instance of this error, which you also found:

https://community.adobe.com/t5/lightroom-classic-discussions/ls-classic-10-4-error-using-publishing-...

 

Another suggestion: ...Try creating a new instance of the Hard Drive publish service...

@johnrellis

Unfortunately, a new instance doesn't behave any better.
But I found out that the bugs were caused by two plugins, Timothy Arme's "LR/Mogrify 2" and Jeffrey Friedl's “Metadata Wrangler” Export Filter, which I've been using for years with no problems. After disabling both and adjusting the publish services accordingly, the errors no longer occur. Thank you for your support!

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LEGEND ,
Nov 24, 2022 Nov 24, 2022

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"“Metadata Wrangler” Export Filter"

 

Please report the problem to Friedl. He's generally very responsive and actively maintains his plugins.

 

""LR/Mogrify 2" 

 

Unfortunately, there's no point in reporting this to the LR/Mogrify2's author -- lots of reports in the forums that he hasn't responded in years.

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LEGEND ,
Nov 24, 2022 Nov 24, 2022

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You made two changes, deactivated two plugins, and things now work. But, we're both of those changes required, or just one?

If you put one back, probably the metadata wrangler, does the problem return?

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Community Beginner ,
Nov 26, 2022 Nov 26, 2022

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Both plugins, even individually, cause "Unknown errors" with a list of not
rendered photos. However, the message "readMetadata: Error when Lightroom
attempts to process a catalog master image file:
"dng_error_file_not_found"" only comes with the Metadata Wrangler.
The regular export with the "Export" function works perfectly with both
plugins.

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Community Beginner ,
Dec 01, 2022 Dec 01, 2022

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I just found that the "Export as before" feature gives the same errors as described.

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