failed to build in 3.5.1.f2 iOS 5 Xcode 4.3

Ld /Users/vrgzdotcom/Library/Developer/Xcode/DerivedData/Unity-iPhone-fkghharyahykfzcqthozccfqwdsg/Build/Products/momopush.app/momopush normal armv7
cd /Users/vrgzdotcom/Desktop/555
setenv IPHONEOS_DEPLOYMENT_TARGET 3.2
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/iPhoneOS5.0.sdk -L/Users/vrgzdotcom/Library/Developer/Xcode/DerivedData/Unity-iPhone-fkghharyahykfzcqthozccfqwdsg/Build/Products -L/Users/vrgzdotcom/Desktop/momopush3.5/Assets/Editor/StoreKit -L/Users/vrgzdotcom/Desktop/momopush3.5/Assets/Editor/GameCenter -L/Users/vrgzdotcom/Desktop/555 -L/Users/vrgzdotcom/Desktop/555/Libraries -F/Users/vrgzdotcom/Library/Developer/Xcode/DerivedData/Unity-iPhone-fkghharyahykfzcqthozccfqwdsg/Build/Products -filelist /Users/vrgzdotcom/Library/Developer/Xcode/DerivedData/Unity-iPhone-fkghharyahykfzcqthozccfqwdsg/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv7/momopush.LinkFileList -dead_strip -all_load -weak_framework CoreMotion -weak-lSystem -miphoneos-version-min=3.2 -framework Foundation -framework UIKit -framework OpenGLES -framework QuartzCore -framework OpenAL -liconv.2 -liPhone-lib -framework AudioToolbox -framework CFNetwork -framework MediaPlayer -framework CoreLocation -framework SystemConfiguration -weak_framework iAd -framework CoreMedia -framework CoreVideo -weak_framework AVFoundation -framework CoreGraphics -weak_framework CoreMotion -weak_framework GameKit -weak_framework MessageUI -lz.1.2.3 -lP31MonoBridge -framework StoreKit -lStoreKit -o /Users/vrgzdotcom/Library/Developer/Xcode/DerivedData/Unity-iPhone-fkghharyahykfzcqthozccfqwdsg/Build/Products/momopush.app/momopush

ld: library not found for -lz.1.2.3
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ failed with exit code 1


what happen ?
i use the prime31 plugins.
anyone any idea?

 

oh the unity3d version is 3.5.1.f2
i type it wrong.

 

if you copied your project from one folder to another folder to use it again.... often some files get left behind, as they are hidden system files, such as the library files (.a) this happens with version control, e.g. svn or on mac 'Versions' or depending on your pc/mac settings.
Try re-importing the plugin again.