How to remove request url error from twitter apis in iphone

I am integrating twitter api in my application.

When I am trying to tweet I am getting an error:

Request A2C3E4D7-D3E8-47AD-A47C-3AC0DF2975A7 failed with error: Error Domain=HTTP    Code=401 The operation couldn’t be completed. (HTTP error 401.)

I saw there is function defined with sendUpdate name. It is looking for parameter updateID and it is having zero (0) value all time. I am supposing this is occurring due to zero value in updateID.

Please help me. How to update in tw开发者_Python百科itter from iPhone application. My consumerkey and consumersecretkey is right.

Thanks