Getting errors when using CodeTimestamps classes in my Qualcomm

Hi, I am using library of Qualcomm, i successfully run my project us qualcomm but only issue is when i use CodeTimestamps to check my project processing speed and getting 2 errors on using LogTimestamp, LogTimestampStartChunk, LogTimestampMidChunk, and LogTimestampEndChunk Macros my project, i follow same procedure as http://eng.pulse.me/line-by-line-speed-analysis-for-ios-apps/ site mentioned. I also successfully use in my test project and got right output. But when i use in my Qualcomm project getting errors. /* errors start here Ld "/Users/putitout/Library/Developer/Xcode/DerivedData/OpenCVClient-cuhuzttdckvnewgwrkccfthvfxux/Build/Products/Debug-iphoneos/AR Color.app/AR Color" normal armv7 cd "/Volumes/third/Aleem/Projects/Supar AR/Super AR v1.1b copy" 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/iPhoneOS5.1.sdk -L/Users/putitout/Library/Developer/Xcode/DerivedData/OpenCVClient-cuhuzttdckvnewgwrkccfthvfxux/Build/Products/Debug-iphoneos -Lbuild/lib/arm "-L/Volumes/third/Aleem/Projects/Supar AR/Super AR v1.1b copy/OpenCVClient" "-L/Volumes/third/Aleem/Projects/Supar AR/Super AR v1.1b copy/OpenCVClient/ARCommon" -F/Users/putitout/Library/Developer/Xcode/DerivedData/OpenCVClient-cuhuzttdckvnewgwrkccfthvfxux/Build/Products/Debug-iphoneos "-F/Volumes/third/Aleem/Projects/Supar AR/Super AR v1.1b copy" -filelist "/Users/putitout/Library/Developer/Xcode/DerivedData/OpenCVClient-cuhuzttdckvnewgwrkccfthvfxux/Build/Intermediates/OpenCVClient.build/Debug-iphoneos/OpenCVClient.build/Objects-normal/armv7/AR Color.LinkFileList" -dead_strip -miphoneos-version-min=4.3 -framework SystemConfiguration -framework CFNetwork -framework Security -framework AVFoundation -framework CoreMedia -framework OpenGLES -framework QuartzCore -framework CoreVideo -framework ImageIO -framework UIKit -framework Foundation -framework CoreGraphics -framework OpenCV -lz -lQCAR -o "/Users/putitout/Library/Developer/Xcode/DerivedData/OpenCVClient-cuhuzttdckvnewgwrkccfthvfxux/Build/Products/Debug-iphoneos/AR Color.app/AR Color" Undefined symbols for architecture armv7: "__Z25LogTimestampChunkInMethodPKciaa", referenced from: -[EAGLView renderFrameQCAR] in EAGLView.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation) Undefined symbols for architecture armv7: "__Z25LogTimestampChunkInMethodPKciaa", referenced from: -[EAGLView renderFrameQCAR] in EAGLView.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation) "__Z25LogTimestampChunkInMethodPKciaa", referenced from: -[EAGLView renderFrameQCAR] in EAGLView.o Symbol(s) not found for architecture armv7 Linker command failed with exit code 1 (use -v to see invocation) errors end here */ I tired searching on google but couldn't get any help. If you guys have any idea how to resolve these please help me out from this headache problem.