I'm new to software development. When I downloaded the sample codes to look at for the iPhone SDK, They will not launch in the Aspen Simulator due to errors. Has anyone else had this problem? If so, how can I fix the errors?

Your problem may be covered in this thread in Apple’s Support Forums:

“The problem is in the Build Settings. I got this problem when I changed the build settings so it was not pointing to the simulator.

First try switching to Debug or Release build, whichever is the opposite of what you are using now. Whatever you changed in the build settings may only be screwed up in one of those.

If that fails, make a new project and copy your files into it. The build settings are saved in the .xcodeproject file so you need to get rid of it. ”

I’ve had endless problems with the sdk

Apple won’t even let me download it anymore