iPhone's Page Control Error

0
votes

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)

2
iphoneios
What changes did you make in that sample? Also, do you have multiple PagingScrollViewController classes? – tipycalFlow
I didn't change anything except the delegate class to my application one. I double checked and there's only one PagingScrollViewController – WaiToNZa
Changing the delegate name won't cause problems. The error indicates that PagingScrollViewController was not found or is duplicated(which you say is not the case). Did you #import "PagingScrollViewController.h" in your delegate.h class? – tipycalFlow
It would be better if you could upload the project for people to look at! – tipycalFlow
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! – tipycalFlow

2 Answers

1
votes

The class PagingScrollViewController is not in your compile list. In the file tree, click your project at the top, then go to your target>build phases expand 'compile phase', then drag the PagingScrollViewController.m file to the list and run.

1
votes

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!