Aperture won't open

[bopedesign]

I needed to move to a larger hard drive for my MacBook. So I...

-Replaced the drive
-Installed 10.5
-Put the old drive in an enclosure
-migrated from the old drive

Everything seems to work great for two weeks now but when I tried to open Aperture it crashes right away and give the following error.

Process: Aperture [362]
Path: /Applications/Aperture.app/Contents/MacOS/Aperture
Identifier: com.apple.Aperture
Version: ??? (???)
Build Info: Aperture-1004230130~1
Code Type: X86 (Native)
Parent Process: launchd [106]

Interval Since Last Report: 122165 sec
Crashes Since Last Report: 28
Per-App Interval Since Last Report: 0 sec
Per-App Crashes Since Last Report: 21

Date/Time: 2012-03-30 09:30:32.350 -0400
OS Version: Mac OS X 10.5.8 (9L31a)
Report Version: 6
Anonymous UUID: C5EDCD92-CFF2-4BDE-AFAC-59B55D69D502

Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0

Dyld Error Message:
Symbol not found: _BKItemKeywordsKey
Referenced from: /Applications/Aperture.app/Contents/MacOS/Aperture
Expected in: /System/Library/PrivateFrameworks/BrowserKit.framework/Versions/A/BrowserKit