Add socialNetworking of prime31 plugin in unity3d for ios

Hello,

When I am integrating prime3l plugin of social networking to unity3d,i am getting error when i am building in to xcode..

Undefined symbols for architecture armv7: "__twitterIsLoggedIn", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookLogin", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookGetLoggedinUsersName", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookGetFriends", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__twitterLogin", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookShowPostMessageDialog", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookIsLoggedIn", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookPostMessageWithLink", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__twitterLoggedInUsername", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__twitterPostStatusUpdate", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__twitterLogout", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__twitterGetHomeTimeline", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookPostMessage", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookGraphRequest", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookInit", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__twitterInit", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookLogout", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookShowPostMessageDialogWithOptions", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookPostImage", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookShowPostMessageDialogWithMessage", referenced from: RegisterMonoModules() in RegisterMonoModules.o "__facebookPostMessageWithLinkAndLinkToImage", referenced from: RegisterMonoModules() in RegisterMonoModules.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation)

Above errors ,when i am build and run in to xcode,this errors are build,,,

any body know how to integrate prime 31 social networking for ios....