xcode crashed while rebuilding of project

My xcode have crashed giving following error whenever I try to run my already running project.

Xcode encountered an internal logic error. Choose "Continue" to continue running Xcode in an inconsistent state. Choose "Crash" to halt Xcode and file a bug with Crash Reporter. Choosing "Crash" will result in the loss of all unsaved data.

I have tried reopening my xcode, restarting mac, clearing total cache and finally reinstalling my sdk 4.3 version but I am still ge开发者_开发技巧tting the error. Can some one advice me how can I get rid of this error.

Thanks

Pankaj

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With me all standard tricks (cache-flush, preferences-purge) didn't help.

What DID help in the end was removing the 'xcuserdata' from the XCode project package. Apparently there were some corrupt user-dependent setting there.

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I had no option but to go back to previous version of the xcode. Now I am using xcode 3.2 and it is working great but I still miss the new features that were provided in xcode 4