Expression of type 'String' cannot be invoked

BlitzMax Forums/BlitzMax Programming/Expression of type 'String' cannot be invoked

Plash
 #1
I get a 'Expression of type 'String' cannot be invoked' error, cannot be invoked?..

If where this section is located matters tell me and ill show the whole code area
Local rqFile:String = RequestFile$("File to Create ...", "txt Files:txt", True, AppDir$() + "/Files")