Can not debug on device

Hi all,
I’m using cocos2dx version 2.1.4. When build for device, i have an error:

Ld /Users/admin/Library/Developer/Xcode/DerivedData/DBL-bxlyrwypdtrxtcckxxfvqsaagssh/Build/Products/Debug-iphoneos/DBL.app/DBL normal armv7
cd /Volumes/Media/soft/cocos2d-x-2.1.4/projects/DBL/proj.ios
setenv IPHONEOS_DEPLOYMENT_TARGET 5.1
setenv PATH “/Volumes/Media/soft/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Volumes/Media/soft/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin”
/Volumes/Media/soft/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ arch armv7isysroot /Volumes/Media/soft/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk L/Users/admin/Library/Developer/Xcode/DerivedData/DBL-bxlyrwypdtrxtcckxxfvqsaagssh/Build/Products/Debug-iphoneosL/Volumes/Media/soft/cocos2d-x-2.1.4/projects/DBL/proj.ios/…/…/…/cocos2dx/platform/third_party/ios/libraries L/Volumes/Media/soft/cocos2d-x-2.1.4/projects/DBL/proj.ios/…/…/…/external/libwebsockets/ios/libL/Volumes/Media/soft/cocos2d-x-2.1.4/projects/DBL/proj.ios/…/…/… F/Users/admin/Library/Developer/Xcode/DerivedData/DBL-bxlyrwypdtrxtcckxxfvqsaagssh/Build/Products/Debug-iphoneosfilelist /Users/admin/Library/Developer/Xcode/DerivedData/DBL-bxlyrwypdtrxtcckxxfvqsaagssh/Build/Intermediates/DBL.build/Debug-iphoneos/DBL.build/Objects-normal/armv7/DBL.LinkFileList dead_stripfobjc-link-runtime miphoneos-version-min=5.1lcurl lsqlite3.0 /Users/admin/Library/Developer/Xcode/DerivedData/DBL-bxlyrwypdtrxtcckxxfvqsaagssh/Build/Products/Debug-iphoneos/libcocos2dx.aframework Foundation framework UIKitframework CoreGraphics framework OpenGLESlxml2 lzframework QuartzCore framework OpenALframework AVFoundation framework AudioToolboxlwebsockets o /Users/admin/Library/Developer/Xcode/DerivedData/DBL-bxlyrwypdtrxtcckxxfvqsaagssh/Build/Products/Debug-iphoneos/DBL.app/DBL
ld: library not found for
lz
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Please help!