problem with linkedIn and twitter (Oauth and SA_OuthTwitterEngine)

i am imple开发者_StackOverflowmenting twitter + fb +linkedIn. fb+linkedIn = working fine, but i need also to integrate the twitter with fb and linkedIn. I have sample code of twitter that is working fine independently and separately. I added the libraries (Oauth, crypto, category and json) for linkedIn and Twitter + oauth (MGTwitterEngine, SAOuthTwitterEngine, headers and libraries) for twitter. But when i try to merge the code of twitter with fb and linkedIn then program gives bad exception in SA_OuthTwitterEngine.m at - (OAConsumer *) consumer method on line_consumer = [[OAConsumer alloc] initWithKey: self.consumerKey secret: self.consumerSecret];

GDB showing exception:

-[OAConsumer initWithKey:secret:]: unrecognized selector sent to instance 0x61677b0
2011-09-15 18:58:41.675 thelifedoctor[8086:207] *** Terminating app due to  uncaughtexception 'NSInvalidArgumentException', reason: '-[OAConsumer   initWithKey:secret:]:unrecognized selector sent to instance 0x61677b0'

I guess linkedIn and twitter have same libraries files(Oauth) that causing compiler to confuse.I an not able to configure out wheres the problem? please help me!!!