Twitter Login Issue

I am doing twitter login integration in ios, getting 401 unauthorised error.Please anyone help me to solve this issue and give steps…

You will have to provide more information.

What library? What code?[quote=“santhanakumar87, post:1, topic:97949”]
getting 401 unauthorised error

What exact error?

A post was split to a new topic: Twitter: successfully do a OAUTH with the twitter account with which I produced the API keys but I am unable to authenticate with any other twitter account other than the account used to make the key