error compiling

Hi everyone ! I bought arduino mega adk . I installed its driver. when I compile blink example . it take 5 minute and after that it give just error compiling . there is no reason for error, just error compiling . what does it mean ?

in the preferences activate the verbose option for compilation output.

then post it.

BTW you seems to be on a windows system, witch?
an error like this can be from a fault download (just try to download again the IDE), otherwise maybe your windows box is seriously compromised and need the classic format. maybe it is something else (long path? strange character in path? crypted filesystem?)