How to run iPhone program with Zombies instrument?

Question

I\'m running XCode 3.2 on Snow Leopard and I\'m trying to run the Zombies instrument against my app but the selection is grayed out and I don\'t know why. I know about the N

Answer 1

Are you sure you're setting it in the right place? I mean, it is a runtime tuneable, not compile time. Just be sure you're setting it in the right place and try again.

Go to Project -> Edit Active Executable
Click Arguments
Click + in the "Variables to be set in the environment" section
Enter NSZombieEnabled in the Name column and YES in the Value column.
Make sure the checkmark for the NSZombieEnabled entry is checked.