Every time I try to import a LR3 catalog (I veryfied and optimized this catalog with LR3 before) with Lightroom 4 on my MacBook Pro (10.7.3) I get this error message:
"Ein interner Fehler ist aufgetreten. Database "/Users/bm/Pictures/Lightroom/Lightroom 4 Catalog.lrcat": columns LC_idx_filename, folder ara not unique Statement: UPDATE AgLibraryFile SET folder = ? WHERE id_local = ?;
and the catalog is not importet.
What is going wrong here?
What can I do?
With best regards
My catalog has about 30.000 pictures, all RAW files, which live in one big directory on the same drive as the catalog file. If I split the catalog in a small one with 1.000 pictures the import into the Lightroom 4 Catalog is no problem. Maybe it's only one picture which causes the error and this picture is not part of my small imported catalog.