hello , when I was uploading my iphone device. xcode gave a error massage. message is Application failed codesign verification. The signature was invalid, or it was not signed with an Apple submission certificate. (-19011) i guess . I have a problem about certification. But I have completed developer profile configuration on Xcode organizer. second problem application loader gave a message "duruldotnet/build/Debug-iphones/duruldotnet.app is not a valid location for the app. it must be at the top level of the archive" I need realy help you.