Hi, I'm new to Xcode and iPhone programming, so pardon the question if it is a really simply fix. I keep getting the following build error and have not been able to determine the root cause. It only happens when I'm building to my iPhone and not when I build to the iPhone simulator. I've successfully built another small App to my iPhone, so I *believe* my development certificate and provisioning profile are OK. Has anyone seen the following error before: Code: Building target “Button Fun” of project “Button Fun” with configuration “Debug” ProcessingProductPackaging /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS2.2.1.sdk/Entitlements.plist "/Users/jcridge/My_Projects/Button Fun/build/Button Fun.build/Debug-iphoneos/Button Fun.build/Button Fun.xcent" <com.apple.tools.product-pkg-utility>: error: CFBundleIdentifier 'com.yourcompany.Button Fun' contains illegal character ' ' I see references to the file "Entitlements.plist", but I've looked and cannot find this file associated with my project. Any and all assistance is greatly appreciated. Thanks!