I'm doing something wrong but don't know what

It looks like you're missing a semicolon at the end of the line: console.printf ("Hello, my name is Santiago")

Make sure it looks like:

console.printf ("Hello, my name is Santiago");

I copy paste what you wrote, then I saved it but the same message keeps appearing...

treehouse:~/workspace$ javac Introductions.java
Introductions.java:8: error: ';' expected
console.printf ("Hello, my name is Santiago");
^
1 error

Thats the hole code:

import java.io.Console;

public class Introductions {

public static void main(String[] args) {
    Console console = System.console(),
    // Welcome to the Introductions program!  Your code goes below here
    console.printf("Hello, my name is Santiago"); 

} }

Then I type:

javac Introductions.java

And this appears: ^
1 error
treehouse:~/workspace$ javac Introductions.java
Introductions.java:8: error: ';' expected
console.printf("Hello, my name is Santiago");