Code Syntax Error

SveGIF-oviNalepniceMimovi
a man is smiling and crying with the words you write code for 2 hours straight realize everything contains syntax error .
a screenshot of a program that says ' public static boolean isvalidfilename ( notnull string filename ) '
a row of buttons with the numbers 415 416 417 418 419 420 on them
a man in a suit and tie is standing in front of a door with a different error message .
a bunch of windows with error messages on them
a cartoon cat is looking at an error code on a computer screen .
a cartoon drawing of a globe showing the united states
a collage of flags with fake written on the bottom