xcode6.3 - Swift 1.2 cannot invoke 'count' with an argument list of type '(String)' -

updated xcode 6.3.1 new swift 1.2, old method countelement change count, when switch use count, throw out error message:

cannot invoke 'count' argument list of type '(string)'

this snippet copied apple doc, still not working.

func printandcount(stringtoprint: string) -> int {     println(stringtoprint)     return count(stringtoprint) }  func printwithoutcounting(stringtoprint: string) {     printandcount(stringtoprint) }  printandcount("hello, world") 

try calling global count function swift module prefix this:

swift.count(stringtopoint)

e.g. when extending array type there property named count , there naming conflict.