When archiving to submit to itunesconnect I get this problem. I think it is due to the upgrade to Xcode 7.0
fatal error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/lipo: /Users/clairemac/Library/Developer/Xcode/DerivedData/Scaffold-cwfltnexflobcpdidgiibydakpyy/Build/Intermediates/ArchiveIntermediates/Scaffold/BuildProductsPath/Release-iphoneos/libSparrow.a and /Users/clairemac/Library/Developer/Xcode/DerivedData/Scaffold-cwfltnexflobcpdidgiibydakpyy/Build/Intermediates/ArchiveIntermediates/Scaffold/BuildProductsPath/Release-iphonesimulator/libSparrow.a have the same architectures (i386) and can't be in the same fat output file
My Base SDK is iOS 9.0, valid architectures are arm64, armv7, and armv7s
Any help is appreciated.