Create IPA file in Xcode 4.2 with iOS 5.0 Beta version

I am developing app using Xcode 4.2 with iOS 5.0 beta version. I want to create ipa. For that I have selected product-->archive option After the Archive operation completes, then go to the Organizer, selected archive, then selected Share and in the "Select the content and options for sharing:" pane set Contents to "iOS App Store Package (.ipa) and Identity to iPhone Distribution (which should match ad hoc/app store provisioning profile for the project). After making all these settings, clicked Next then it disaplays save dialog. Giving 开发者_C百科ipa name clicked save. Then it shows error as"Operation couldn't be completed. No such file or directory" and ipa creation process stops.

Is there going anything wrong? How can I create an .ipa file with Xcode 4.2 iOS 5.0 beta?

Try this - How to create an IPA (Xcode 4). Although this is described for iOS 4, my guess is it would work for iOS 5

Do you have your adhoc-profile selected in your scheme?