Error \404

Hi all! This may be a dumb question but I am not that good at programming and I couldn't figure out the problem on the other forums I saw this on so you may be able to help me. I wrote a short program to add some spunk to me doing the ALS ice bucket challenge so the program would display ALS made up of / \ _ | and so on but when I tried to compile it for testing it threw error /404 at me. Here is the code that it didn't like. (the letters got messed up with the spacing on the forums...)

  Serial.println("|       __       ____       ____  |\n");
  Serial.println("|       /  \      |  |      / __ \ |\n");
  Serial.println("|       /    \     |  |     / /  \_\|\n");
  Serial.println("|   /  /\  \    |  |     \ \___  |\n");
  Serial.println("|      /  /__\  \   |  |      \___ \ |\n");
  Serial.println("|      /     ______  \  |  |    __    \ \|\n");
  Serial.println("|      /      /      \  \ |  |____\ \___/ /|\n");
  Serial.println("|    /__/        \__\|_______|\_____/ |\n");

Replace each occurrence of "\" in the strings with "\". The backslash has a special meaning in a C string. It is used as an "escape" character - for example, you already use the escape sequence "\n" in your strings. To get one backslash to appear when printed, you have to "escape" it with another one.

Pete