I am getting these errors

[john burns]

CS0234: Line 3: The type or namespace name `Drawing' does not exist in the namespace `System'. Are you missing an assembly reference?
CS0234: Line 4: The type or namespace name `Drawing' does not exist in the namespace `System'. Are you missing an assembly reference?
CS0234: Line 5: The type or namespace name `Drawing' does not exist in the namespace `System'. Are you missing an assembly reference?
CS0246: Line 24: The type or namespace name `Color' could not be found. Are you missing a using directive or an assembly reference?
CS0246: Line 25: The type or namespace name `Color' could not be found. Are you missing a using directive or an assembly reference?
CS0246: Line 46: The type or namespace name `Color' could not be found. Are you missing a using directive or an assembly reference?
CS0246: Line 94: The type or namespace name `Bitmap' could not be found. Are you missing a using directive or an assembly reference?

There is more, but they are all like these. What do I need to do?

 

[Doctor Mephisto]

Did you compile with System.Drawing maybe?

 

[john burns]

HUH? how?

 

[Doctor Mephisto]

Debian example: You may need additional references depending on what emulator you're using....

gmcs -out:../runuo.exe -d:MONO /reference:System.Drawing.dll,Ultima.dll -optimize+ -unsafe -recurse:*.cs

 

[Doctor Mephisto]

or dmcs for .net 4