Until xcode 4 final (I was using 3.latest and 4 GM for the time it was available) this didn\'t happen. When I upgraded to xcode 4 final version, I started getting a linking
I have added 3rd Party framework with some demo classes into project but once implemented it successfully I removed those demo classes and since then the error started coming up Error "ld: ........., file is universal but does not contain a(n) armv6 slice for architecture armv6"
After scratching my head for a whole day I found this solution next morning maybe helpful for fellow iphone buddies coz I know the pain
Targets->"Your Project Target"-> Get Info ->Build Active Architecture only set to YES
Thats it..