Using IAR Version 4.30C I have downloaded freeRTOs with a view to trialing it. However when I load the demo for IAR/AVR323. Without modifying anything – when I enter Debug mode (using the simulator as opposed to hardware) I get the message "Stack Warning" "The stack plug-in failed to set a breakpoint on "main". …………." I then get and error "Unkown or ambiguous symbol

Doh… hit return too early. I then get and error "Unkown or ambiguous symbol . main". The the message "Couldn’t go to ‘main’. Now the programme very definitly has a ‘main’ function.  Is there any known issues with the IAR/AVR demo or solution.