DPC+ error?

[Rabbit 2600]

Hm, I get an error saying:

Compiling C:\atari\Robotron Clone\default.bas
DASM V2.20.07, Macro Assembler ©1988-2003
bytes of ROM space left
2729 bytes of ROM space left
2729 bytes of ROM space left
--- Unresolved Symbol List
pfcenter 0000 ???? (R )
player4height 0000 ???? (R )
player3height 0000 ???? (R )
player2height 0000 ???? (R )
kernelmacrodef 0000 ???? (R )
pfhalfwidth 0000 ???? (R )
player4pointerhi 0000 ???? (R )
player3pointerhi 0000 ???? (R )
player2pointerhi 0000 ???? (R )
player4pointerlo 0000 ???? (R )
player3pointerlo 0000 ???? (R )
player2pointerlo 0000 ???? (R )

Fatal assembly error: Source is not resolvable.
Errors were encountered during assembly.
2600 Basic compilation completed.
Compilation completed at 2013-10-19 17:43:03
view output file:///C:/atari/Robotron Clone/bin

 

 

What's causing the error?

 rem Generated 2013-10-19 17:39:33 by Visual bB Version 1.0.0.554
 rem **********************************
 rem *<filename>                      *
 rem *<description>                   *
 rem *<author>                        *
 rem *<contact info>                  *
 rem *<license>                       *
 rem **********************************

   set kernel DPC+

BATTLEFIELD

  player0:
   %00011111
   %11111111
   %00111110
   %11111111
   %00011111
end

   player1:
   %00011111
   %11111111
   %00111110
   %11111111
   %00011111
end

   player2:
   %00011111
   %11111111
   %00111110
   %11111111
   %00011111
end

   player3:
   %00011111
   %11111111
   %00111110
   %11111111
   %00011111
end

   player4:
   %00011111
   %11111111
   %00111110
   %11111111
   %00011111
end


 drawscreen


 goto BATTLEFIELD

[+Random Terrain]

Like I said before, you can use this as a template to make sure that you have the basic structure of a DPC+ program:

 

randomterrain.com/atari-2600-memories-batari-basic-commands.html#dpc_harmony

[Rabbit 2600]

Sorry, Random Terrain. The template had slipped my mind, thanks for reminding me! =)