What is the most hated error you have encounter when developing for the iPhone? [closed]

Question

Ever language has their famous and painfull errors. I will be fun to learn which errors earn this reputation when developing for the iPhone.

Please list yours!

I agree with GenericTypeTea If you can please list the error code/message and the cause to make for a more useful post.

Answer 1

I particularly hate this error.

Thank you for submitting [application name here] to the App Store. We've reviewed the application and, consistent with the criteria in our approval process, we have chosen not to publish this application. As you know Apple reserves the right, in its sole discretion, to reject an application for any reason.