I tried to use this code but it doesn’t work. http://developer.apple.com/library/ios/#samplecode/PageControl/Introduction/Intro.html
Ld “/Users/waitonza/Library/Developer/Xcode/DerivedData/Dr_Ngoo-aanknxmuodcgjicaigxevljxokeq/Build/Products/Debug-iphonesimulator/Dr
Ngoo.app/Dr Ngoo” normal i386
cd /Users/waitonza/Desktop/Project/Dr-Ngoo
setenv MACOSX_DEPLOYMENT_TARGET 10.6
setenv PATH “/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.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 i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk
-L/Users/waitonza/Library/Developer/Xcode/DerivedData/Dr_Ngoo-aanknxmuodcgjicaigxevljxokeq/Build/Products/Debug-iphonesimulator
-F/Users/waitonza/Library/Developer/Xcode/DerivedData/Dr_Ngoo-aanknxmuodcgjicaigxevljxokeq/Build/Products/Debug-iphonesimulator
-filelist “/Users/waitonza/Library/Developer/Xcode/DerivedData/Dr_Ngoo-aanknxmuodcgjicaigxevljxokeq/Build/Intermediates/Dr
Ngoo.build/Debug-iphonesimulator/Dr Ngoo.build/Objects-normal/i386/Dr
Ngoo.LinkFileList” -mmacosx-version-min=10.6 -Xlinker
-objc_abi_version -Xlinker 2 -fobjc-arc -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=50100 -framework QuartzCore -framework SystemConfiguration -lsqlite3.0 -framework UIKit -framework Foundation -framework CoreGraphics -o
“/Users/waitonza/Library/Developer/Xcode/DerivedData/Dr_Ngoo-aanknxmuodcgjicaigxevljxokeq/Build/Products/Debug-iphonesimulator/Dr
Ngoo.app/Dr Ngoo”Undefined symbols for architecture i386:
“_OBJC_CLASS_$_PagingScrollViewController”, referenced from:
objc-class-ref in DrNgooAppDelegate.o ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit
code 1 (use -v to see invocation)
The solution is the same as we’ve discussed in the comments:
I checked your project and it does not have PagingScrollViewController. You're probably referencing it from outside the folder. Add it to the project too and it should work fine!@CodaFi also had the correct answer so +1 to him too!