Xcode iOS organizer submit to app store yields “The archive is invalid” error

Question

I just switched from Xcode 3 to 4. When I attempt to upload an app that I have archived to the organizer, I receive this error:

The archive is invalid

Answer 1

I tried everything including reinstalling xcode4 with unix tools. NOthing works. I assume I shouldnt have to do this as I'm able to submit other apps without issues. I'm just having this issue with a partiular project (coming from xcode3).

I even created a project from scratch, imported all the code over and tried again - failed. so it's not only my project but something in it. So I've started the process of creating a new project, adding some files, then submitting, then rejecting to figure out what's causing it. This is working so far.

update: ok - it has something to do with using CorePlot and linking it in as a library. and voila - found the answer here. Can't submit app with CorePlot using Xcode4 Solution: when submitting select "Don't resign"