Question

I am getting following error while installing the application on my device. before running in device i am tested in simulator uploaded fine but in device i am getting this error :
plz help me how to solve this ……….

_OBJC_CLASS_$_GDataYouTubeMediaGroup", referenced from:
      objc-class-ref in YoutubeUploader.o
  "_OBJC_CLASS_$_GDataUtilities", referenced from:
      objc-class-ref in YoutubeUploader.o
  "_OBJC_CLASS_$_GDataMediaTitle", referenced from:
      objc-class-ref in YoutubeUploader.o
  "_OBJC_CLASS_$_GDataServiceGoogleYouTube", referenced from:
      objc-class-ref in YoutubeUploader.o
  "_OBJC_CLASS_$_GDataMediaKeywords", referenced from:
      objc-class-ref in YoutubeUploader.o
  "_kGDataServiceDefaultUser", referenced from:
      -[YoutubeUploader uploadVideoFile] in YoutubeUploader.o
  "_kGDataSchemeYouTubeCategory", referenced from:
      -[YoutubeUploader uploadVideoFile] in YoutubeUploader.o
  "_OBJC_CLASS_$_GDataMediaDescription", referenced from:
      objc-class-ref in YoutubeUploader.o
  "_OBJC_CLASS_$_GDataEntryYouTubeUpload", referenced from:
      objc-class-ref in YoutubeUploader.o
  "_OBJC_CLASS_$_GDataMediaCategory", referenced from:
      objc-class-ref in YoutubeUploader.o
ld: symbol(s) not found for architecture armv6
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

You are using the GData library but haven’t linked/added it.
Check out GData Objective-C Client Setup in XCode 4 on how to build/link the GData library correctly.