在IOS应用程序的instagram集成中，“重定向URI与注册的重定向URI不匹配”

I am working on iPad app, and I need to integrate Instagram. I found a sample that works fine. But coming to my app I registered as new user in instagram developer account. Though I am following the steps as said in Instagram API docs, I am getting an error "Redirect URI doesnot match registered redirect URI".I am working on iPad app, and I need to integra