ASIHTTPRequest Error

gistfile1.m

Ld /Users/mstebler/Library/Developer/Xcode/DerivedData/HelloWorld-czyixfszfhbscsgjrwnahmfpznsa/Build/Products/Debug-iphonesimulator/HelloWorld.app/HelloWorld normal i386
    cd "/Users/mstebler/Documents/Coding Webspaces/XCode/HelloWorld"
    setenv MACOSX_DEPLOYMENT_TARGET 10.6
    setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -L/Users/mstebler/Library/Developer/Xcode/DerivedData/HelloWorld-czyixfszfhbscsgjrwnahmfpznsa/Build/Products/Debug-iphonesimulator -F/Users/mstebler/Library/Developer/Xcode/DerivedData/HelloWorld-czyixfszfhbscsgjrwnahmfpznsa/Build/Products/Debug-iphonesimulator -filelist /Users/mstebler/Library/Developer/Xcode/DerivedData/HelloWorld-czyixfszfhbscsgjrwnahmfpznsa/Build/Intermediates/HelloWorld.build/Debug-iphonesimulator/HelloWorld.build/Objects-normal/i386/HelloWorld.LinkFileList -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=50000 -lz -framework MobileCoreServices -framework SystemConfiguration -framework CFNetwork -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/mstebler/Library/Developer/Xcode/DerivedData/HelloWorld-czyixfszfhbscsgjrwnahmfpznsa/Build/Products/Debug-iphonesimulator/HelloWorld.app/HelloWorld

Undefined symbols for architecture i386:
  "_objc_assign_ivar", referenced from:
      -[ViewController setTextField:] in ViewController.o
      -[ViewController setLabel:] in ViewController.o
      -[ASIAuthenticationDialog presentingController] in ASIAuthenticationDialog.o
      -[ASIDownloadCache setStoragePath:] in ASIDownloadCache.o
      -[ASIHTTPRequest releaseBlocksOnMainThread] in ASIHTTPRequest.o
      -[ASIHTTPRequest setRequestMethod:] in ASIHTTPRequest.o
      -[ASIHTTPRequest setURL:] in ASIHTTPRequest.o
      ...
  "_objc_assign_global", referenced from:
      +[ASIAuthenticationDialog initialize] in ASIAuthenticationDialog.o
      +[ASIAuthenticationDialog presentAuthenticationDialogForRequest:] in ASIAuthenticationDialog.o
      -[ASIAuthenticationDialog viewDidDisappear:] in ASIAuthenticationDialog.o
      +[ASIDownloadCache initialize] in ASIDownloadCache.o
      +[ASIDownloadCache sharedCache] in ASIDownloadCache.o
      +[ASIHTTPRequest initialize] in ASIHTTPRequest.o
      +[ASIHTTPRequest sessionProxyCredentialsStore] in ASIHTTPRequest.o
      ...
  "_objc_assign_strongCast", referenced from:
      -[ASIDataCompressor compressBytes:length:error:shouldFinish:] in ASIDataCompressor.o
      +[ASIDataCompressor compressData:error:] in ASIDataCompressor.o
      +[ASIDataCompressor compressDataFromFile:toFile:error:] in ASIDataCompressor.o
      -[ASIDataDecompressor uncompressBytes:length:error:] in ASIDataDecompressor.o
      +[ASIDataDecompressor uncompressData:error:] in ASIDataDecompressor.o
      +[ASIDataDecompressor uncompressDataFromFile:toFile:error:] in ASIDataDecompressor.o
      -[ASIHTTPRequest main] in ASIHTTPRequest.o
      ...
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)