How to fix date format?

[Suliman via Digitalmars-d-learn]

I tried to do:

writeln(DateTime.toISOExtString(DateTime.fromSimpleString(point[1].coerce!string)));

But got error:

Error: function std.datetime.DateTime.toISOExtString () const is 
not callable using argument types (DateTime)
Error: function database.Database.getSingleTrackInfo no return 
exp; or assert(0); at end of function