Cannot fix malformed "switch" statement

[Aunt Tifa]

So I am getting multiplayer set up for a game I am creating, and I am using this script to recieve packets. The only problem is that GM:S returns a "malformed 'switch' statement" error for what looks like no reason. I've looked in the Game Maker Docs and the forums for anything like this but to no avail, and I'm fairly sure this is a simple problem that needs the attention of someone with more experience.

//scr_recieved_packet(buffer,socket)
var buffer = argument0;
var socket = argument1;
var msgid = buffer_read(buffer, buffer_u8);

switch (msgid)
    {
    //Case statements go here...
    }

[Blind]

you need at least one case

[Aunt Tifa]

Originally posted by BBX:

you need at least one case

I knew this was a simple issue. Thanks!

[Blind]

you can use the statement "case default" as a catch all if you can't anticipate all possible actions.