COBCH1711 <class-name> has no visible method <method-name> with <number> parameter(s)

In the following example, the messsgeEnd method does not take the parameter 4 that has been attempted to pass to it.

class-id myClass.
method-id main.
 display self::messageEnd(4)
end method.
method-id messageEnd returning val as string.
 set val = "End of Program."
end method.
end class.