IPhone simulator fails


I have a fresh iPhone project. When I "Build and Go":

Error from Debugger: Failed to launch simulated application: iPhone Simulator failed to install the application.

Why is that?!

Best Solution

You need to remove the folder as sudo ~/Library/Application Support/iPhone Simulator

sudo rm -Rfv ~/Library/Application\ Support/iPhone\ Simulator

It looks like previous versions of the SDK have some kind of permission trouble.