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ProKit 6.0.1 breaking Final Cut Studio

ProKit 6.0.1 came out last week with bug fixes for Logic and Aperture. No Final Cut Studio changes were mentioned, and in fact it would seem that a number of people have experienced problems after updating:

Apple Discussions - Installed Pro Kit 6.0.1... all Pro Apps down!

Apple Discussions - DVD Studio Pro 4.1.2/ProKit Update 6.0.1

LAFCPUG - WARNING - Just did Prokit update

Ken Stone - Last week's Pro Kit update 6.0.1-DVD studio Pro crashing

For the record, I know several people who have installed this update successfully with no problems whatsoever, but as this update doesn't specifically address anything in Final Cut Studio it's better to give it a miss.

Anyone experiencing issues should report the bug to Apple or leave feedback. There isn't a fix for this as of yet but some people have managed to repair it by restoring the old ProKit.framework file from their Time Machine backups or from another machine on their network.

(Note: FCS Remover won't help in this instance because ProKit is now integrated into OS X and FCS Remover never removes files that reside in the System directory for safety reasons.)

Update: Here's how to fix it.