Undefined symbols for architecture armv7: "_$F"

[stadia]

this errors in building CoreResource "_$F", referenced from: -[CoreTableController controllerDidChangeContent:] in CoreTableController.o ld: symbol(s) not found for architecture armv7 collect2: ld returned 1 exit status

"_$F", referenced from: -[CoreTableController controllerDidChangeContent:] in CoreTableController.o ld: symbol(s) not found for architecture armv6 collect2: ld returned 1 exit status

so modify source from 140 line in CoreTableController.m self.tableReloadDelay = $F(defaultTableReloadDelay); to self.tableReloadDelay = [NSNumber numberWithFloat:defaultTableReloadDelay];