Key issues, the code compiles without syntax problem, but the emergence of these! What happens?

Building target "ViewandButton" of project "ViewandButton" with configuration "Debug" - (11 errors, 2 warnings)
cd "/ Volumes/disk0s2/Text code / ViewandButton"
/ Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.0-x objective-c-arch i386-fmessage-length = 0-pipe-std = c99-Wno-trigraphs-fpascal-strings-fasm-blocks -O0-Wreturn-type-Wunused-variable-D__IPHONE_OS_VERSION_MIN_REQUIRED = 20000-isysroot / Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator2.0.sdk-fvisibility = hidden-mmacosx-version-min = 10.5-gdwarf-2 -iquote "/ Volumes/disk0s2/Text code / ViewandButton / build / ViewandButton.build / Debug-iphonesimulator / ViewandButton.build / ViewandButton-generated-files.hmap" "-I/Volumes/disk0s2/Text code / ViewandButton / build / ViewandButton.build / Debug-iphonesimulator / ViewandButton.build / ViewandButton-own-target-headers.hmap "" -I/Volumes/disk0s2/Text code / ViewandButton / build / ViewandButton.build / Debug-iphonesimulator / ViewandButton.build / ViewandButton -all-target-headers.hmap "-iquote" / Volumes/disk0s2/Text code / ViewandButton / build / ViewandButton.build / Debug-iphonesimulator / ViewandButton.build / ViewandButton-project-headers.hmap "" -F/Volumes / disk0s2/Text code / ViewandButton / build / Debug-iphonesimulator "" -I/Volumes/disk0s2/Text code / ViewandButton / build / Debug-iphonesimulator / include "" -I/Volumes/disk0s2/Text code / ViewandButton / build / ViewandButton .build / Debug-iphonesimulator / ViewandButton.build / DerivedSources "-include / var/folders/r1/r1EopKPdGvugVPmFQb2fGk + + + TI/-Caches-/com.apple.Xcode.501/SharedPrecompiledHeaders/ViewandButton_Prefix-cuvzmfayouzcwohggmshlfxzgkgz/ViewandButton_Prefix.pch - c "/ Volumes/disk0s2/Text code / ViewandButton / Classes / ViewandButtonAppDelegate.m"-o "/ Volumes/disk0s2/Text code/ViewandButton/build/ViewandButton.build/Debug-iphonesimulator/ViewandButton.build/Objects-normal/i386 / ViewandButtonAppDelegate.o "
/ Volumes/disk0s2/Text code / ViewandButton / Classes / ViewandButtonAppDelegate.m: 73: warning: property 'view2' requires method '-view2' to be defined - use @ synthesize, @ dynamic or provide a method implementation
/ Volumes/disk0s2/Text code / ViewandButton / Classes / ViewandButtonAppDelegate.m: 73: warning: property 'view2' requires the method 'setView2:' to be defined - use @ synthesize, @ dynamic or provide a method implementation
/ Volumes/disk0s2/Text code / ViewandButton / Classes / ViewandButtonAppDelegate.m: 73: warning: property 'view2' requires method '-view2' to be defined - use @ synthesize, @ dynamic or provide a method implementation
/ Volumes/disk0s2/Text code / ViewandButton / Classes / ViewandButtonAppDelegate.m: 73: warning: property 'view2' requires the method 'setView2:' to be defined - use @ synthesize, @ dynamic or provide a method implementation
cd "/ Volumes/disk0s2/Text code / ViewandButton"
/ Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.0-arch i386-isysroot / Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator2.0.sdk "-L/Volumes/disk0s2/Text code / ViewandButton / build / Debug-iphonesimulator "" -F/Volumes/disk0s2/Text code / ViewandButton / build / Debug-iphonesimulator "-filelist" / Volumes/disk0s2/Text code/ViewandButton/build/ViewandButton.build/Debug- iphonesimulator/ViewandButton.build/Objects-normal/i386/ViewandButton.LinkFileList "-mmacosx-version-min = 10.5-framework Foundation-framework UIKit-framework CoreGraphics-o" / Volumes/disk0s2/Text code/ViewandButton/build/Debug- iphonesimulator / ViewandButton.app / ViewandButton "
Undefined symbols:
"_kCAMediaTimingFunctionEaseInEaseOut", Referenced from:
_kCAMediaTimingFunctionEaseInEaseOut $ non_lazy_ptr in TransitionView.o
"_kCATransitionFromRight", Referenced from:
_kCATransitionFromRight $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionFade", Referenced from:
_kCATransitionFade $ non_lazy_ptr in ViewandButtonAppDelegate.o
_kCATransitionFade $ non_lazy_ptr in TransitionView.o
". Objc_class_name_CAMediaTimingFunction", referenced from:
literal-pointer @ __OBJC @ __cls_refs @ CAMediaTimingFunction in TransitionView.o
"_kCATransitionFromBottom", Referenced from:
_kCATransitionFromBottom $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionMoveIn", Referenced from:
_kCATransitionMoveIn $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionFromLeft", Referenced from:
_kCATransitionFromLeft $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionPush", Referenced from:
_kCATransitionPush $ non_lazy_ptr in ViewandButtonAppDelegate.o
". Objc_class_name_CATransition", referenced from:
literal-pointer @ __OBJC @ __cls_refs @ CATransition in TransitionView.o
"_kCATransitionFromTop", Referenced from:
_kCATransitionFromTop $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionReveal", Referenced from:
_kCATransitionReveal $ non_lazy_ptr in ViewandButtonAppDelegate.o
ld: symbol (s) not found
collect2: ld returned 1 exit status
"_kCAMediaTimingFunctionEaseInEaseOut", Referenced from:
_kCAMediaTimingFunctionEaseInEaseOut $ non_lazy_ptr in TransitionView.o
"_kCATransitionFromRight", Referenced from:
_kCATransitionFromRight $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionFade", Referenced from:
_kCATransitionFade $ non_lazy_ptr in ViewandButtonAppDelegate.o
_kCATransitionFade $ non_lazy_ptr in TransitionView.o
". Objc_class_name_CAMediaTimingFunction", referenced from:
literal-pointer @ __OBJC @ __cls_refs @ CAMediaTimingFunction in TransitionView.o
"_kCATransitionFromBottom", Referenced from:
_kCATransitionFromBottom $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionMoveIn", Referenced from:
_kCATransitionMoveIn $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionFromLeft", Referenced from:
_kCATransitionFromLeft $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionPush", Referenced from:
_kCATransitionPush $ non_lazy_ptr in ViewandButtonAppDelegate.o
". Objc_class_name_CATransition", referenced from:
literal-pointer @ __OBJC @ __cls_refs @ CATransition in TransitionView.o
"_kCATransitionFromTop", Referenced from:
_kCATransitionFromTop $ non_lazy_ptr in ViewandButtonAppDelegate.o
"_kCATransitionReveal", Referenced from:
_kCATransitionReveal $ non_lazy_ptr in ViewandButtonAppDelegate.o
ld: symbol (s) not found
collect2: ld returned 1 exit status
Build failed (11 errors, 2 warnings)
Reply:


. O reference to a problem

Reply:
There is not another project. O file ah! Respect. H and. M file!



Reply:
The landlord probably did not need to go inside the package added to the project.