I have been trying to update iPhoto through App Store on my iMac, but I constantly fail. It always downloads the whole package - 1.15GB, then it does its mumbo jumbo, but everytime it looks promising, it shows a red sign - An error has occurred.

Of course I have tried rebooting the computer! :-)

I have a 2010 iMac with Mavericks installed...anybody encountered the same problem?


Try deleting ~/Library/Caches/com.apple.storehelper/* and ~/Library/Caches/com.apple.installer/*

You might have some sort of permissions problem on the existing copy of iPhoto so you might also try deleting it manually before you download the new one.

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