Please help me with a DarwinBuild error I keep getting. I have re-installed DarwinBuild from SVN, and initialized a fresh 9C31 build environment, which I then have populated with all available binary roots. I am able to build most projects successfully, but those that require xcodebuild keep throwing following error: Build log begins here: dyld: Library not loaded: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation Referenced from: /Developer/usr/bin/xcodebuild Reason: Incompatible library version: xcodebuild requires version 150.0.0 or later, but CoreFoundation provides version 1.0.0 I am running this on a Leopard system with Xcode 3 installed. I do *not* get this error when using -nochroot. Could this have anything to do with CF vs. CF-Lite? Thanks for your help.