I am new in iPhone Distribution . I created Apple ID U765UXW88D.com.edwincs.*. and provisioning profile name is MobileHealthGuide. I made these in Distribution tab. My xcode version is 3.2.4 While uploading application with application loader , I got this error Application failed codesign verification. The signature was invalid, or it was not signed with an Apple submission certificate. My project name is MobileHealthGuide too. I have tried revoking the certificate and provisioning profile, but the error persists. How can I solve this problem?