Stackoverflow Bug?

Hey,
I bought a new Arduino Board so i have now 128k Memory, but my new Problem is, when i try to compile/upload this code: #include <SPI.h>#include <Ethernet.h>#include <LiquidCrystal.h>#include <SD.h - Pastebin.com
the IDE says: "sketch_apr18a.cpp: In function 'void setup()': sketch_apr18a.cpp:32:31: error: 'myfile' was not declared in this scope"

but myfile is declared?, why does it says it isn't?

Thanks guys,
Greetz