XCode crashes on startup

Question

When I startup Xcode I get the following error:

The application Xcode quite unexpectedly. Clicking on the Report... button gives the following:

Process:         Xcode [875]
Path:            /Developer/Applications/Xcode.app/Contents/MacOS/Xcode
Identifier:      com.apple.Xcode
Version:         ??? (???)
Build Info:      DevToolsIDE-9210000~1
Code Type:       X86 (Native)
Parent Process:  launchd [140]

Date/Time:       2009-03-12 15:13:14.839 -0500
OS Version:      Mac OS X 10.5.6 (9G55)
Report Version:  6

Exception Type:  EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Crashed Thread:  0

Application Specific Information:
objc[875]: '/System/Library/PrivateFrameworks/DebugSymbols.framework/Versions/A/DebugSymbols' was not compiled with -fobjc-gc or -fobjc-gc-only, but the application requires GC
objc[875]: *** GC capability of application and some libraries did not match
...

The full detail can be seen here. I've never used Xcode before (although I did run it when I first installed it). Any ideas on what could be causing this?

Answer 1

Download and install the latest version of Xcode. That's what I did to fix this issue.

Answer 2

If you just installed safari 4, either revert back to 3 or install the latest version of Xcode. Hope that helps