An internal error has occurred. ?:0: attempt to index field 'rootfile' (a nil value)

Question

Screen capture of the LR screen with comments.

191 images in this catalog are greyed out and non-accessible. All the rest of the 6248 images in the catalog are viewable and have no issues.

Pop-up error dialog I get when trying to delete/export any/all of these 191 images:

“An internal error has occurred.
?:0: attempt to index field 'rootfile' (a nil value)”

Noticed that the difference in counts between ‘Catalog’ and ‘Folders’ panes on the left is 191. The same number as the number of grayed out images in Library view panel.

See above link for some clarity.

How can I delete/remove these from the catalog?

drtonyb · Answer

@buckshot1960

The error you see

“An internal error has occurred.
?:0: attempt to index field 'rootfile' (a nil value)”

means that your catalog has a problem. Restore and open the most recent backup of your catalog, if you have one.

Each photo in a catalog links to information about where the orginal file is stored on your computer. For any photo where that link is lost, LrC will list the photo in the grid, but will not have access to the orginal file to enable it to build a preview; the thumnail will be grey. How this can happen we can only guess at; most likely the catalog didn't get updated properly for some reason, whether that is ha hardware problem or a software issue.

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