I face a problem with Xcode version 4.2 with iOS 5 and iPhone 3G. When I  tried to run my app in my iPhone 3G with iOS 4.2, Xcode's status bar text is change in this order Building, Running on <Device name> and immediately it is say finished running <app name>. But, it is running fine in iPad and other latest versions of iPhone. I check with all settings,  I given support from iOS 3.0 and I changed my provisioning profile download freshly and setup. But no use then after several t...