A fix for ProKit-related crashes on open/save (Logic et. al)

Question

OK, here's the deal. I recently upgraded my Mac Pro from Leopard to Snow Leopard (mainly to get ready for Lion, I've been running SL on my MacBook Pro for ages). I never had any problems with Logic 8 (or Final Cut Studio 5.1 for that matter) on my MBP running SL. But after upgrading my Mac Pro, I would get nothing but crashes any time I tried to bring up an Open or Save dialog box in any of Apple's pro apps. The crash log would always show something like this:
Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   libobjc.A.dylib                         0x91795917 objc_msgSend + 23
1   com.apple.AppKit                        0x95e11649 -[NSView _recursiveBreakKeyViewLoop] + 219
2   com.apple.AppKit                        0x95e10a2b -[NSWindow dealloc] + 641
3   com.apple.AppKit                        0x961ab298 -[NSSavePanel _bonafiedDealloc] + 75
4   com.apple.CoreFoundation                0x931779d8 CFRelease + 152
5   com.apple.CoreFoundation                0x931a45bd _CFAutoreleasePoolPop + 253
6   com.apple.Foundation                    0x95942f9f NSPopAutoreleasePool + 393
7   com.apple.Foundation                    0x95942d8a -[NSAutoreleasePool drain] + 130
8   com.apple.AppKit                        0x95c66539 -[NSApplication run] + 627
9   com.apple.prokit                        0x009bb3f6 NSProApplicationMain + 326
10  com.apple.WaveBurner                    0x000027fa 0x1000 + 6138
11  com.apple.WaveBurner                    0x00002721 0x1000 + 5921
After pulling my hair out for hours, I finally solved the problem. I discovered that there was a /System/Library/PrivateFrameworks/ProKit.framework as well as a /S/L/PF/ProKit(SnowLeopard).framework folder on my Mac Pro. However, on my MBP, there was only the expected ProKit.framework folder.
So, (via the Terminal, sudo mv, etc.) I renamed ProKit.framework to ProKitFOO.framework and renamed ProKit(SnowLeopard).framework to ProKit.framework. Boom! Everything started working fine.
I Googled for a fix like this for hours earlier, so here's hoping that this might end up helping someone else out there, perhaps thinking of upgrading to SL to make way for Lion. Don't ask me why this ProKit installation was goofy, but at least now there may be a workaround.

Answer 1

Hey, thanks!
I was having the exact same problems in Final Cut Studio 2
Motion crashes/closes on 'save as' or export.
DVD studio pro crashes on import.
Soundtrack Pro crashes on save as.
Final cut pro 6 was the only one that worked fine. Not sure about LiveType, havn't used that in like 4 years.
JUST A WARNING:
Final Cut Pro X will not open after this fix!
Any ideas of how to get both FCS2 and FCPX working on the same machine in Snow Leopard? I like editing in FCPX (for my needs it's faster) but I still need DVDSP. :/
Any point upgrading to FCS3 or will that crash as well?
---------------Or is there an alternative to DVD SP that's free or not too expensive????------------------
For those that need it, here's the reverse process:
(This worked just fine for me to reverse the process and get FCPX to work again, HOWEVER, I am NOT qualified to give this advice, I am not a programmer or developer! - do the following at your own risk.)
Open Terminal and enter the 4 lines below and press 'enter' after each line:
cd /System/Library/PrivateFrameworks/
sudo mv ProKit.framework "ProKit(SnowLeopard).framework"
sudo mv ProKitFOO.framework ProKit.framework
exit
I hope that's been helpful to someone.
Nitsan.