iPhoto keeps rebuilding the iPhoto library thumbnails

Hi

A user recently purchased a new MacBook Pro (Mavericks)

I transfered her files and photos, that had been backed up to an external drive, to the new system

Recently she called me because every time she opens iPhoto the application begins to recreate the thumbnails. This process lasts for hours (she has quite an extensive library of pics) and never seems to succeed.

Is this normal behaviour for iPhoto ?

Should we split her library up, or archive some of her photos ?

thanks
yann
Yann ShukorOwnerAsked:
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Eoin OSullivanConsultantCommented:
Is this normal behaviour for iPhoto ?
NO - it should do it once .. and be fairly quick thereafter

Should we split her library up, or archive some of her photos ?
Possibly - if the library is really big it is better to split it anyway but the real problem may be with the photos that were copied to the mac in the first place.

Run a repair permissions on her Mac .. in case some copied photos are locked or incorrectly set in terms of permissions.  You could also right click on the photo library, open the folder attributes and set all ownership and permissions recursively on the iPhoto album to repair permissions.

Personally I use this great program to manage multiple libraries with iPhoto - simply copy - move photos between libraries etc.  Its not free but worthwhile if you're managing lots of iPhoto libraries.
http://www.fatcatsoftware.com/iplm/
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