I just downloaded the new release 2.8 of Vofuria SDK for iOS, and all examples run without problem, except a warning:
(null): Directory not found for option '-L../../../build/Debug-iphoneos'
Ld /Users/sunqian/Library/Developer/Xcode/DerivedData/BackgroundTextureAccess-ffnucwfdkcmhmubznzolppsbtmpa/Build/Products/Debug-iphoneos/BgdTexture.app/BgdTexture normal armv7
cd /Users/sunqian/Develop/vuforia-sdk-ios-2-8-7/samples/BackgroundTextureAccess-2-8-9
setenv IPHONEOS_DEPLOYMENT_TARGET 4.3
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -L/Users/sunqian/Library/Developer/Xcode/DerivedData/BackgroundTextureAccess-ffnucwfdkcmhmubznzolppsbtmpa/Build/Products/Debug-iphoneos -L/Users/sunqian/Develop/vuforia-sdk-ios-2-8-7/samples/BackgroundTextureAccess-2-8-9/../../build/lib/arm -L../../../build/Debug-iphoneos -F/Users/sunqian/Library/Developer/Xcode/DerivedData/BackgroundTextureAccess-ffnucwfdkcmhmubznzolppsbtmpa/Build/Products/Debug-iphoneos -filelist /Users/sunqian/Library/Developer/Xcode/DerivedData/BackgroundTextureAccess-ffnucwfdkcmhmubznzolppsbtmpa/Build/Intermediates/BackgroundTextureAccess.build/Debug-iphoneos/BackgroundTextureAccess.build/Objects-normal/armv7/BgdTexture.LinkFileList -dead_strip -fobjc-link-runtime -miphoneos-version-min=4.3 -framework QuartzCore -framework Security -framework CoreMotion -framework OpenGLES -framework SystemConfiguration -framework AVFoundation -framework CoreMedia -framework CoreVideo -framework UIKit -framework Foundation -framework CoreGraphics -lQCAR -Xlinker -dependency_info -Xlinker /Users/sunqian/Library/Developer/Xcode/DerivedData/BackgroundTextureAccess-ffnucwfdkcmhmubznzolppsbtmpa/Build/Intermediates/BackgroundTextureAccess.build/Debug-iphoneos/BackgroundTextureAccess.build/Objects-normal/armv7/BgdTexture_dependency_info.dat -o /Users/sunqian/Library/Developer/Xcode/DerivedData/BackgroundTextureAccess-ffnucwfdkcmhmubznzolppsbtmpa/Build/Products/Debug-iphoneos/BgdTexture.app/BgdTexture
ld: warning: directory not found for option '-L../../../build/Debug-iphoneos'
ld: warning: directory not found for option '-L../../../build/De
Thanks for this.
This is simply a warning as a redundant search path has crept into the xcode project - the warning is harmless.
You can remove this from the Build Settings / Search Paths and the warning will go away.
N